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