Hi.
Hello, how may I help 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, I am happy to help you. Can you please let me know your good name?
Daniel Taylor here.
Sorry, we did not find any active reservation on your name our records.
That's ok, thank you for your help.
Thank you for availing us.