Hi.
Hello, how can 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, can you please let me know your name?
Debra Martinez here.
Sorry, there is no active reservation found under your name to change.
That's ok, thank you for your help.
Thank you for reaching us.