You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: I am Amy Wilson, I already book a flight to New York to meet my grand father, but due to my bad health I cancelled my plan. Can you cancel my reservation?

ASSISTANT: Sure, please wait for a while.

USER: Sure.

ASSISTANT: We found a reservation with your name, shall I cancel it?

USER: Please cancel my reservation.

ASSISTANT: Your flight ticket has been cancelled.

USER: Thank you for helping me.

ASSISTANT: Thank you for opting us.