You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: I want to cancel my ticket due to family problems, could you help me out?

ASSISTANT: Sure, I will help you with the flight reservation cancellation.

USER: My name is Daniel Taylor.

ASSISTANT: May I know your name please? I have searched online but I could not find your flight reservation to cancel it.

USER: It's ok, thank you.

ASSISTANT: Thank you.