You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you now?

USER: I am Paul Walker.

ASSISTANT: Ok,.

USER: Owing to an emergency, I need to cancel my recent reservation. Can you help me out?

ASSISTANT: Sure, please wait for a while.

USER: Sure.

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

USER: That's ok.

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

USER: Anyways, thank you for your help.