You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you?

USER: I am William Thompson. I need to cancel my recent reservation, as my NBA play off has been cancelled. Please help me in cancelling?

ASSISTANT: Sure, please wait a moment. We found a reservation on your name. shall I proceed to cancellation?

USER: Ok, cancel my reservation.

ASSISTANT: Your reservation has been cancelled successfully.

USER: Thank you.

ASSISTANT: Thank you.