You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you today?

USER: My plan to meet my friend at New York is cancelled as he got a urgent work to do, so he went to Washington. Can you can cancel my reservation?

ASSISTANT: Sure, may I know your good name?

USER: My name is Alexander Campbell.

ASSISTANT: Please wait for a moment.

USER: Sure.

ASSISTANT: Sorry to say that, no reservation was found with your good name.

USER: Ok, thank you for the information.

ASSISTANT: Thank you for opting us.