You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you now?

USER: Myself Kevin Phillips.

ASSISTANT: Ok.

USER: I want to cancel my reservation, due to some health issue.

ASSISTANT: That's sad to hear, I will cancel your reservation, please wait for a moment.

USER: Ok, thank you.

ASSISTANT: Kevin, your reservation is successfully cancelled.

USER: Thank you for your help.

ASSISTANT: Thank you for approaching us, have a nice day.

USER: Welcome.