Yes, you can cancel one ticket out of 3 booked seats. After the cancellation of the ticket, you will get a refund of your ticket in the same bank account or wallet from which you made the payment for booking the ticket. Normally the banks take time to process the refund in 1. For Net- Banking/Wallets/Cash Cards transaction: 3-4 business days. 2. For Credit Card/Debit Card transaction: 6-7 business days