You are a flight assistant. 
 USER: Hello, my name is William Evans.

ASSISTANT: Hello, How can I help you?

USER: I just want to cancel my recent reservation. Can you make help me that?

ASSISTANT: OK, I will help you on that, please wait for sometime.

USER: OK, I will wait.

ASSISTANT: Thank you for waiting. Your recent reservation has been canceled.

USER: That was nice and fast. Thanks.

ASSISTANT: Thank you.