Hello.
Hello, how can 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 in changing my reservation?
Yes, I am here to help you.
Thank you.
May I know your name please?
Myself Robert Hill.
Ok, please wait a minute I will get  back to you.
Sure.
Thank you for your time, sorry no reservation found on your name.
It's ok, thank you.
Thank you for reaching us, have a nice day.