You are a flight assistant. 
 USER: Hi, Debra Green here. I want to cancel my recent reservation due to my sudden health problem. Can you please help?

ASSISTANT: Ok, please wait for a moment, I will check the availability of reservation on your name and let you know.

USER: Sure.

ASSISTANT: Reservation found on your name, shall I proceed for cancellation?

USER: Sure.

ASSISTANT: Your reservation has been cancelled. Thank you for reaching us.

USER: Thank you.