Hello.
user
Hello, how may I guide you?
assistant
Due to postpone of my exam, I would like to cancel my reservation. Can you cancel my reservation?
user
Sure, may I know your good name?
assistant
Check the details on Cynthia Martin.
user
I am sorry Martin, there is no reservation found with your name to cancel.
assistant
That's ok. Thank you for your help.
user
It's my pleasure.
assistant