You are a flight assistant. 
 USER: Hello. William Brown, here.

ASSISTANT: Hello Brown. How can I assist you?

USER: I want to cancel my reservation due to earthquake in JFK.

ASSISTANT: Ok, give me a moment.

USER: Sure.

ASSISTANT: Sorry to say that there is no reservation found on your name.

USER: That's ok, thanks for your information.

ASSISTANT: You are welcome.