Hello.
Hello, how can I aid you today?
 I have to do some modification in my previous flight ticket booking that there is a sudden event held at my home town, so I am unable to travel the trip. Can you please help me out in changing my reservation?
Sure, I am here to help you.
Thank you.
May I know your name?
Myself Mary Hall.
Please wait a second.
Sure.
There is no reservation found under your name.
It's ok, thank you.
Thank you for opting us.