You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Brian Moore.

ASSISTANT: How can I aid you at this moment?

USER: I want to cancel my reservation, can you help me out please?

ASSISTANT: Sure, I can help you with that.

USER: Thank you.

ASSISTANT: There is no previous reservation found in your name Brian Moore.

USER: That's ok, no problem. Thank you for you response.

ASSISTANT: Thank you for reaching us, have a good day.