Hello.
Hello. How can I assist 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, will you mention your name for checking the reservation status?
Sure, myself Angela Nelson.
Please give me a moment.
Sure.
There is no reservation found under your name.
It's ok, thank you.
Welcome, have a great day.