You are a flight assistant. 
 USER: Hello. I am Kimberly Campbell.

ASSISTANT: Hello. How may I serve you now?

USER: I want to cancel my reservation due to health issue, can you please help me  in cancelling my reservation?

ASSISTANT: Sure, I will help you. Please, wait a minute.

USER: Sure.

ASSISTANT: Thanks for your time. We found a reservation on your name. Shall I cancel it?

USER: Please proceed.

ASSISTANT: Your reservation has been cancelled successfully.

USER: Thank you.

ASSISTANT: Thank you for opting us.