Rasa Chatbot complete code

.gitconfig

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+[user]
+	name = Namrata B
+	email = namratabafna14@gmail.com

.vscode/settings.json

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+{
+    "python.formatting.provider": "black"
+}

README.md

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+# RasaChatBot

actions.py

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+from __future__ import absolute_import
+from __future__ import division
+from __future__ import unicode_literals
+
+from rasa_sdk import Action
+from rasa_sdk.events import SlotSet
+import pandas as pd
+import json
+import smtplib
+from email.mime.multipart import MIMEMultipart
+from email.mime.text import MIMEText
+from rasa_sdk.events import AllSlotsReset
+
+ZomatoData = pd.read_csv("zomato.csv", encoding="cp1252")
+ZomatoData = ZomatoData.drop_duplicates().reset_index(drop=True)
+WeOperate = [
+    "New Delhi",
+    "Gurgaon",
+    "Noida",
+    "Faridabad",
+    "Allahabad",
+    "Bhubaneshwar",
+    "Mangalore",
+    "Mumbai",
+    "Ranchi",
+    "Patna",
+    "Mysore",
+    "Aurangabad",
+    "Amritsar",
+    "Puducherry",
+    "Varanasi",
+    "Nagpur",
+    "Vadodara",
+    "Dehradun",
+    "Vizag",
+    "Agra",
+    "Ludhiana",
+    "Kanpur",
+    "Lucknow",
+    "Surat",
+    "Kochi",
+    "Indore",
+    "Ahmedabad",
+    "Coimbatore",
+    "Chennai",
+    "Guwahati",
+    "Jaipur",
+    "Hyderabad",
+    "Bangalore",
+    "Nashik",
+    "Pune",
+    "Kolkata",
+    "Bhopal",
+    "Goa",
+    "Chandigarh",
+    "Ghaziabad",
+    "Ooty",
+    "Gangtok",
+    "Shimla",
+]
+
+
+def RestaurantSearch(City, Cuisine, PriceRange):
+
+    if PriceRange == "LessThan300":
+        print("PriceRange ", PriceRange)
+        # Price Range Lesser than Rs. 300
+        TEMP = ZomatoData[
+            (ZomatoData["Cuisines"].apply(lambda x: Cuisine.lower() in x.lower()))
+            & (ZomatoData["City"].apply(lambda x: City.lower() in x.lower()))
+            & ZomatoData["Average Cost for two"].between(0, 299)
+        ]
+
+    elif PriceRange == "Three00To700":
+        print("PriceRange ", PriceRange)
+        # Price is between 300 and 700
+        TEMP = ZomatoData[
+            (ZomatoData["Cuisines"].apply(lambda x: Cuisine.lower() in x.lower()))
+            & (ZomatoData["City"].apply(lambda x: City.lower() in x.lower()))
+            & ZomatoData["Average Cost for two"].between(300, 700)
+        ]
+    elif PriceRange == "MoreThan700":
+        print("PriceRange ", PriceRange)
+        # Price is greater than 700
+        TEMP = ZomatoData[
+            (ZomatoData["Cuisines"].apply(lambda x: Cuisine.lower() in x.lower()))
+            & (ZomatoData["City"].apply(lambda x: City.lower() in x.lower()))
+            & (ZomatoData["Average Cost for two"] > 700)
+        ]
+    else:
+        # Price is not specified
+        TEMP = ZomatoData[
+            (ZomatoData["Cuisines"].apply(lambda x: Cuisine.lower() in x.lower()))
+            & (ZomatoData["City"].apply(lambda x: City.lower() in x.lower()))
+        ]
+    # Sort by Rating
+    TEMP = TEMP.sort_values("Aggregate rating", ascending=False)
+    return TEMP[
+        ["Restaurant Name", "Address", "Average Cost for two", "Aggregate rating"]
+    ]
+
+
+class ActionSearchRestaurants(Action):
+    def name(self):
+        return "action_search_restaurants"
+
+    def run(self, dispatcher, tracker, domain):
+        print("Action Search Restaurant is excecuting..")
+        loc = tracker.get_slot("location")
+
+        # Check if Zomato operates in specified location
+        loc_exists = len(ZomatoData[ZomatoData["City"].str.contains(loc)]) > 0
+        if loc_exists == False:
+            print("Location exists ", loc_exists)
+            dispatcher.utter_message(
+                "-----Sorry, we don’t operate in this city. Can you please specify some other location"
+            )
+            return [SlotSet("location", loc)]
+        cuisine = tracker.get_slot("cuisine")
+        price_range = tracker.get_slot("price_range")
+        results = RestaurantSearch(City=loc, Cuisine=cuisine, PriceRange=price_range)
+        global response
+        response = ""
+        if results.shape[0] == 0:
+            response = "Sorry! There are no restaurants matching the search criteria"
+        else:
+            response = response + f"-----Found {len(results)} restaurants----- \n"
+            response = response + f"-----Showing Top 10 matching results----- \n"
+            for restaurant in results.iloc[:10].iterrows():
+                restaurant = restaurant[1]
+                response = (
+                    response
+                    + f"{restaurant['Restaurant Name']} in {restaurant['Address']} rated {restaurant['Address']} with avg cost {restaurant['Average Cost for two'] } \n"
+                    + f"**Rating {restaurant['Aggregate rating']} \n\n"
+                )
+
+        dispatcher.utter_message("-----" + response)
+        return [
+            SlotSet("location", loc),
+            SlotSet("cuisine", cuisine),
+            SlotSet("price_range", price_range),
+        ]
+
+
+class ActionSendMail(Action):
+    def name(self):
+        return "action_send_mail"
+
+    def run(self, dispatcher, tracker, domain):
+        receiver_address = tracker.get_slot("cust_email")
+        if receiver_address:
+            print("email ", receiver_address)
+            try:
+                print("Mail Content ", response)
+                mail_content = response
+                sender_address = "namratabafna14@gmail.com"
+                sender_pass = ""
+                print("Setup account")
+                # Setup the MIME
+                message = MIMEMultipart()
+                message["From"] = sender_address
+                message["To"] = receiver_address
+                message[
+                    "Subject"
+                ] = "Here are the details of the top restaurants from Zomato search - Upgrad"  # The subject line
+                # The body and the attachments for the mail
+                message.attach(MIMEText(mail_content, "plain"))
+                # Create SMTP session for sending the mail
+                session = smtplib.SMTP("smtp.gmail.com", 587)  # use gmail with port
+                session.starttls()  # enable security
+                session.login(
+                    sender_address, sender_pass
+                )  # login with mail_id and password
+                text = message.as_string()
+                session.sendmail(sender_address, receiver_address, text)
+                session.quit()
+                print("Mail sent successfully to - ", receiver_address)
+                dispatcher.utter_message(
+                    "-----Mail sent successfully to - ", receiver_address
+                )
+            except Exception as e:
+                dispatcher.utter_message(
+                    "-----Failed email sending to - ", receiver_address
+                )
+                print("Failed to send an email to ", receiver_address)
+                print(e)
+        else:
+            dispatcher.utter_message("-----You will not receive an email")
+        return [SlotSet("cust_email", receiver_address)]
+
+
+class ActionSlotReset(Action):
+    def name(self):
+        return "action_slot_reset"
+
+    def run(self, dispatcher, tracker, domain):
+        return [AllSlotsReset()]

config.yml

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+language: "en"
+pipeline:
+  - name: SpacyNLP
+    model: "en_core_web_md"
+  - name: SpacyTokenizer
+  - name: SpacyFeaturizer
+  - name: RegexFeaturizer
+  - name: LexicalSyntacticFeaturizer
+  - name: CountVectorsFeaturizer
+  - name: CountVectorsFeaturizer
+    analyzer: "char_wb"
+    min_ngram: 1
+    max_ngram: 4
+  - name: DIETClassifier
+    epochs: 50
+  - name: EntitySynonymMapper
+  - name: ResponseSelector
+    epochs: 50
+policies:
+  - name: MemoizationPolicy
+  - name: TEDPolicy
+    max_history: 5
+    epochs: 100
+  - name: RulePolicy

credentials.yml

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+# This file contains the credentials for the voice & chat platforms
+# which your bot is using.
+# https://rasa.com/docs/rasa/user-guide/messaging-and-voice-channels/
+
+rest:
+#  # you don't need to provide anything here - this channel doesn't
+#  # require any credentials
+
+
+#facebook:
+#  verify: "<verify>"
+#  secret: "<your secret>"
+#  page-access-token: "<your page access token>"
+slack:
+  slack_channel: "C02D2NBG2RX"    # channel ID, not a channel name!
+  slack_token: "xoxb-XXX"       # token obtained in the next step
+  slack_signing_secret: "YYY"   # secret obtained in the next step
+
+#socketio:
+#  user_message_evt: <event name for user message>
+#  bot_message_evt: <event name for but messages>
+#  session_persistence: <true/false>
+
+rasa:
+  url: "http://localhost:5005/webhook"

data/nlu.md

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+## intent:affirm
+- yes
+- yep
+- yeah
+- indeed
+- that's right
+- ok
+- great
+- right, thank you
+- correct
+- great choice
+- sounds really good
+- thanks
+
+## intent:goodbye
+- bye
+- goodbye
+- good bye
+- stop
+- end
+- farewell
+- Bye bye
+- have a good one
+- Goodbye
+- Nothing thank you
+
+## intent:greet
+- hey
+- howdy
+- hey there
+- hello
+- hi
+- good morning
+- good evening
+- dear sir
+
+## intent:restaurant_search
+- i'm looking for a place to eat
+- I want to grab lunch
+- I am searching for a dinner spot
+- I am looking for some restaurants in [Delhi](location).
+- I am looking for some restaurants in [Bangalore](location)
+- show me [chinese](cuisine) restaurants
+- show me [chines]{"entity": "cuisine", "value": "chinese"} restaurants in the [New Delhi]{"entity": "location", "value": "Delhi"}
+- show me a [mexican](cuisine) place in the [centre](location)
+- i am looking for an [indian](cuisine) spot called olaolaolaolaolaola
+- search for restaurants
+- anywhere in the [west](location)
+- I am looking for [asian fusion](cuisine) food
+- I am looking a restaurant in [294328](location)
+- in [Gurgaon](location)
+- [South Indian](cuisine)
+- [North Indian](cuisine)
+- [Italian](cuisine)
+- [Chinese]{"entity": "cuisine", "value": "chinese"}
+- [chinese](cuisine)
+- [Lithuania](location)
+- Oh, sorry, in [Italy](location)
+- in [delhi](location)
+- I am looking for some restaurants in [Mumbai](location)
+- I am looking for [mexican indian fusion](cuisine)
+- can you book a table in [rome](location) in a [moderate]{"entity": "price", "value": "mid"} price range with [british](cuisine) food for [four]{"entity": "people", "value": "4"} people
+- [central](location) [indian](cuisine) restaurant
+- please help me to find restaurants in [pune](location)
+- Please find me a restaurantin [bangalore](location)
+- [mumbai](location)
+- show me restaurants
+- please find me [chinese](cuisine) restaurant in [delhi](location)
+- can you find me a [chinese](cuisine) restaurant
+- [delhi](location)
+- please find me a restaurant in [ahmedabad](location)
+- please show me a few [italian](cuisine) restaurants in [bangalore](location)
+- [Lesser than Rs. 300](price_range)
+- [Rs. 300 to 700](price_range)
+- [More than 700](price_range)
+- [Mexican](cuisine) restaurant in [Mumbai](location)
+- [LessThan300](price_range)
+- [Mexican](cuisine) Restro in [China](cuisine)[]{"entity": "location", "value": "China"}
+- Find a restaurant in [Mumbai](location) then
+- Find me a [chinese](cuisine) restaurant in [Delhi](location)
+- [MoreThan700](price_range)
+- [Mexican](cuisine) restro in [Delhi](location)
+- [Mexican](cuisine) in [Bhutan](location)
+- Chnage the city to [Delhi](location)
+
+## intent:send_email
+- Yes, My email address is [namratabafna14@gmail.com](cust_email)
+- Yup, My email-id is [deepakgupta0021@gmail.com](cust_email)
+- My mail address is [mlengineernamrata@gmail.com](cust_email)
+- abc@gmail.com
+- abc123@gmail.com
+- My email id is [namratabafna14@gmail.com](cust_email)
+- Yes it's [namratabafna14@gmail.com](cust_email)
+- Three00To700
+- Yes please send it on [deepakgupta0021@gmail.com](cust_email)
+- Please send it to [deepakgupta0021@gmail.com](cust_email)
+
+## synonym:4
+- four
+
+## synonym:Delhi
+- New Delhi
+
+## synonym:bangalore
+- Bengaluru
+
+## synonym:chinese
+- chines
+- Chinese
+- Chines
+
+## synonym:mid
+- moderate
+
+## synonym:vegetarian
+- veggie
+- vegg
+
+## regex:cust_email
+- ^[a-zA-Z0-9+_.-]+@[a-zA-Z0-9.-]+$
+
+## regex:greet
+- hey[^\s]*
+
+## regex:pincode
+- [0-9]{6}