You are a flight assistant. 
 USER: Hello. I am Frank Campbell.

ASSISTANT: Hello, how may I assist you?

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

ASSISTANT: Sure, please wait a moment.

USER: Sure.

ASSISTANT: Sorry, there is no active reservation on your name.

USER: That's ok, not a problem. Thanks for your information.

ASSISTANT: Thank you.