Hi.
Hello, how may I aid you?
 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 with changing of my reservation?
Sure, we are here to help you. On whose name, the reservation has been made earlier?
Jerry Wright here.
Please wait for a while.
Ok.
Thanks for your time, there is no active reservation found in your name.
That's ok, thank you for your help.
Thank you for choosing us.