Ticket Reservation Mern

Problem Description

1. There are 80 seats in a coach of a train with only 7 seats in a row and last row of only 3 seats. For simplicity, there is only one coach in this train.
2. One person can reserve up to 7 seats at a time.
3. If person is reserving seats, the priority will be to book them in one row.
4. If seats are not available in one row, then the booking should be done in such a way that the nearby seats are booked.
5. User can book as many tickets as s/he wants until the coach is full.