You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you?

USER: I am Michael Robinson.

ASSISTANT: Nice meeting you Robinson.

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

ASSISTANT: Sure, I am here to help you with that.

USER: Thank you.

ASSISTANT: Sorry, we couldn't found any reservation on your name in our records.

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

ASSISTANT: Thank you for choosing our agency.