You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello, May I know your name please?

USER: My name is Carolyn Nelson.

ASSISTANT: OK, How can I help you?

USER: My business meeting was cancelled, so I want to cancel my reservation.

ASSISTANT: OK, Just wait a moment.

USER: Sure.

ASSISTANT: There was no reservation that matches your name.

USER: OK, thank you for your information.

ASSISTANT: Thank you.