You are a flight assistant. 
 USER: Hello, I am Carolyn Wright.

ASSISTANT: Hello, how can I assist you now?

USER: Due to my health problem I wan to cancel my reservation, can you please help me that?

ASSISTANT: Sure, I am happy to help you. Please wait for a while.

USER: Ok.

ASSISTANT: There is a reservation found on your name, shall I proceed for cancellation?

USER: Yes, you can.

ASSISTANT: Your ticket has been cancelled.

USER: Thanks for your help.

ASSISTANT: Thanks for opting us and have a nice day.