You are a flight assistant. 
 USER: Hello. I am Patrick Martin.

ASSISTANT: Hello, how may I help you Martin?

USER: Due to the issue of states-departition at my visiting place, I want to quit my trip. Please help me with that.

ASSISTANT: Sure, please wait for a moment.

USER: Ok.

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

USER: That's ok, thank you for your time.

ASSISTANT: Thank you for your information.