You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you today?

USER: I have an unplanned meeting at my parent company, so I have to cancel my vacation plan. Could you please cancel my reservation?

ASSISTANT: Sure, may I know your good name?

USER: Sure, my name is Rachel Carter.

ASSISTANT: Please wait for a moment.

USER: Sure.

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

USER: That's Ok, thanks for your response.

ASSISTANT: Thank you for reaching us.