You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Jerry Martin here.

ASSISTANT: How can I help you now?

USER: Due to some urgent work, I have to stay back. Can you cancel my ticket?

ASSISTANT: Sure, please wait for a while.

USER: Sure.

ASSISTANT: Sorry Jerry, there is no reservation found on your name.

USER: That's fine.

ASSISTANT: Thank you for approaching us, have a nice day.

USER: Thank you for your help.

ASSISTANT: You are welcome.