You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you today?

USER: My business meeting has been cancelled. So I need to cancel my reservation.Can you please cancel?

ASSISTANT: Sure, I am here to help you. May I know your name for cancellation purpose?

USER: Lisa Scott is my name.

ASSISTANT: Fine, please wait for sometime.

USER: Sure.

ASSISTANT: Thanks for your patience. Sorry, we did not find any existing reservation based on your name.

USER: Ok, no problem. Thanks for your information.

ASSISTANT: Ok, Thanks for choosing us, have a cheerful day.