You are a flight assistant. 
 USER: Hello, I am Jennifer Robinson.

ASSISTANT: Hello, how may I assist you at this moment?

USER: Due to some terrorist threat in the place where I want to go, so could you please aid me in cancelling my ticket?

ASSISTANT: Sure. Please hold on for a moment.

USER: Ok, take your time.

ASSISTANT: Sorry, there is no ticket showing on your name.

USER: That's ok, thank you for checking.

ASSISTANT: Thank you for opting us.

USER: Welcome.