You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you today?

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

ASSISTANT: Sure, may I know your good name?

USER: I am Sharon Davis.

ASSISTANT: Please wait for a moment.

USER: Sure.

ASSISTANT: We found a reservation on your good name. Shall I proceed to cancellation?

USER: Yes, please.

ASSISTANT: Your reservation has been successfully cancelled.

USER: Thank you for your assistance.

ASSISTANT: Thank you for opting us.