You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: I am Brian Baker. I would like to cancel my recent reservation, can you help me?

ASSISTANT: Sure, I will help you.

USER: Ok fine.

ASSISTANT: Please wait a minute.

USER: Sure.

ASSISTANT: Sorry Brian, there is no active reservation found under your name in our records.

USER: That's fine, thanks for your help and information.

ASSISTANT: Most welcome.