You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: I want to cancel my recent reservation, due to some health issue. Can you help you?

ASSISTANT: Sure, may I know your name?

USER: Yes, I am Andrew Lopez.

ASSISTANT: Please wait for a moment.

USER: Sure.

ASSISTANT: No reservation found on your name.

USER: That's fine, no problem.

ASSISTANT: Thank you for reaching us.

USER: Thank you for your information.