You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you?

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

ASSISTANT: Sure Patrick, please wait a moment.

USER: Sure.

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

USER: That's fine. Thank you for your help.

ASSISTANT: Thank you for approaching us.