You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Jerry Wilson.

ASSISTANT: Yes Jerry, what can I do for you?

USER: Actually, I am planning to cancel my recent reservation, due to some health issue. Can you help me out?

ASSISTANT: Sure, give me a moment.

USER: Sure.

ASSISTANT: Sorry Jerry, there is no reservation found with your name.

USER: That's fine.

ASSISTANT: Thank you for choosing us.

USER: Thank you.

ASSISTANT: Welcome.