You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you?

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

ASSISTANT: Sure, please wait for a moment.

USER: Sure.

ASSISTANT: May I know your good name please?

USER: Yes, I am Jason Martin here.

ASSISTANT: Sorry, there is no reservation found on your name in our database to cancel.

USER: Ok, not a problem. Thank you for your information.

ASSISTANT: You are welcome.