You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you today?

USER: I am Larry Carter. My business meeting was postponed, so I want to cancel my reservation.

ASSISTANT: Ok, please wait for a moment.

USER: Sure.

ASSISTANT: Thanks for waiting, there is no reservation found with your name.

USER: Thanks for your service.

ASSISTANT: Thanks for choosing us.