You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. What kind of help you are looking for?

USER: My holiday trip has been postponed, so I would like to cancel my reservation.  I had planned to go on a vacation later.Can you cancel my reservation?

ASSISTANT: I can help you with that. May I know your name for cancelling?

USER: Myself Alexander Phillips.

ASSISTANT: Phillips, there is no reservation found on your name.

USER: Ok fine, thank you for the information.

ASSISTANT: You are welcome.