You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you?

USER: My name is George Green. I would like to cancel my reservation, could you help me out?

ASSISTANT: Sure, wait a minute.

USER: Ok.

ASSISTANT: Sorry, we could not find any reservation on your name.

USER: That's ok.

ASSISTANT: Thank you for reaching us.

USER: Thank you for your time.