Hello.
user
Hello, how can I assist you today?
assistant
 I would like to cancel my flight reservation as my trip got postponed, can you please help me?
user
Sure, Let me know your name to check your reservation?
assistant
I am Jeffrey Thompson.
user
Ok, please wait a moment.
assistant
Sure.
user
Thank you for waiting. I have checked in reservation list to cancel your ticket, but could not find any reservation with your name.
assistant
That's ok, thank you for checking.
user
Thank you for choosing us.
assistant