You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello, how may I guide you today?

USER: I want to cancel my recent reservation which is with the name Christopher Hall. Please help me out.

ASSISTANT: Sure, we are here to help you with cancellation. Please be on hold.

USER: Ok.

ASSISTANT: Thanks for waiting, there was no reservation found on that name.

USER: That's fine, Thank you.

ASSISTANT: Thank you for opting us.