Hello.
Hello. How can I help you now?
I have reserved a ticket last week to attend a summit but suddenly it got postponed. So please  help me with changing my reservation.
Sure, I am glad to help you with ticket modification process.
Thank you.
Can I know your name please?
Sure, myself Kevin Anderson.
Give me a moment.
Sure, take your time to check.
Thank you for waiting, I could not find any previous flight ticket booking on the name that you have mentioned us for checking purpose.
Oh! It may not be booked properly due to technical issues while booking. Anyway, thank you for your time.
Yes, it might be happened some times. Thank you for reaching us.