Hello.
user
Hello, how may I serve you at this moment?
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 in changing my reservation?
user
Sure, we are here to help you.
assistant
Thank you.
user
May I know your name to check your reservation status?
assistant
My name is Anthony Brown.
user
Ok, please be on hold.
assistant
Sure.
user
Thank you for waiting, sorry to inform you that we could not find any  reservation on your name.
assistant
It's ok, thank you.
user
Thank you for choosing us.
assistant