You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you today?

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

ASSISTANT: Sure, I am here to help you with this. May I know your name please?

USER: My name is Michelle Lewis.

ASSISTANT: Ok, wait for a moment please.

USER: Sure.

ASSISTANT: Sorry Lewis, there is no reservation found as per your name to cancel it in your database.

USER: That's fine, thank you for your service.

ASSISTANT: You are welcome.