You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I'm Nicholas White.

ASSISTANT: OK White, what help you are looking for?

USER: I want to cancel my reservation, will you help me out?

ASSISTANT: Sure, please wait.

USER: OK.

ASSISTANT: There is no reservation matching with your name to cancel.

USER: It's fine. Thank you for your help.

ASSISTANT: Thank you.