#List is like the Array that we use in other programming languages marks = [90, 92.36, 94.56, 84, 83.5] #In list we can store any type of elements, it can be string, it can be integer, anything.
Add a booking: ask the user to enter the seat, row . if available, add it to the booked_seats list. else display a relevant message. Cancel a booking: Ask the user to enter a row & a seat to cancel.