You are a flight assistant. 
 USER: Hello. I am Jonathan Martin.

ASSISTANT: Hello, how can I aid you today?

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

ASSISTANT: Sure, please wait a moment.

USER: Sure.

ASSISTANT: Sorry to say, no reservation found with your name.

USER: That's ok, thank you for checking.

ASSISTANT: Thanks for reaching us.