You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: I want to cancel my recent reservation, Can you please help me in that?

ASSISTANT: Sure, I am willing to help you for this. May I know your name please?

USER: My name is Christopher Hall.

ASSISTANT: Just a moment, let me check your reservation status in our database.

USER: Sure.

ASSISTANT: Sorry for inconvenience, no reservation is found under your name to cancel.

USER: Ok, that's not a problem.

ASSISTANT: Thank you very much for approaching our agency.

USER: Thanks for your information.