You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I aid you?

USER: Can you please help me in cancelling my recent reservation? As I have a heavy work load in my office.

ASSISTANT: Sure, I will help you with the flight reservation cancellation. May I know your name please?

USER: Sure, my name is Jason Hall.

ASSISTANT: I have searched online but I could not find your flight reservation to cancel it.

USER: Oh! That's ok, may be my friend has already cancelled it. Thank you for your time anyways.

ASSISTANT: Thank you.