You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you?

USER: Alexander Lewis, here.

ASSISTANT: Yes, Lewis.

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

ASSISTANT: Sure, please wait a moment let me check the details. Sorry, no reservation found.

USER: That's fine, thanks for helping me out.

ASSISTANT: Thank you for contacting us.