You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, what kind of help you are looking from us?

USER: Can you please help me in cancelling my reservation?

ASSISTANT: Sure, I am glad to help you with the cancellation. May I know your name to check with the status?

USER: I am Brian Thompson.

ASSISTANT: Brian Thompson, regret to inform that there is no active reservation found under your name to cancel.

USER: Ok, no problem. Thank you.

ASSISTANT: Thank you for reaching us.