You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I serve you?

USER: I am Deborah Brown. I want to cancel my reservation, due to my health issues.

ASSISTANT: Ok.

USER: Could you help me in cancellation?

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

USER: Sure.

ASSISTANT: Thanks for your time, we found a reservation on your name. Shall I cancel this reservation?

USER: Sure, you can proceed to cancellation.

ASSISTANT: Your reservation has been cancelled and the amount will be credited to your account within seven working days.

USER: Ok. Thanks for your good service.

ASSISTANT: Thank you for reaching us.