Its an online application for buying bus traveling tickets.
(a)The user opens the app, and they search for available tickets to travel(This information will be in an online database)
(b) The enter the 'from destination' and the 'to destination' information and it searches the database and brings out the result.
(c) The user clicks proceed and he/she is asked to select a sit.(It will bring out the available sits from the database)
(d) after the user selects their seats, they will be asked to make payment(I will send you the api for this later)
(e) If the transaction is successful, it will stored the successful information with its status in a order table
Referencing website : [url removed, login to view]