You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I aid you?

USER: I want to cancel my recent reservation due to some health issues. Can you help me for that one?

ASSISTANT: Sure, I can help you with that. Can I have your good name please?

USER: Sure, Mark Wilson here.

ASSISTANT: Please allow me a minute to check your reservation status.

USER: Sure.

ASSISTANT: Mark Wilson, reservation found under your name and I have cancelled it successfully.

USER: Thank you, for the cancellation.

ASSISTANT: Thank you for choosing us.