You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how best can I aid you?

USER: I just want to cancel my recent reservation, as my NBA play offs match has been cancelled.

ASSISTANT: Ok. Can I know your name to cancel your reservation?

USER: Sure, my name is Ronald Jackson.

ASSISTANT: Please wait a moment.

USER: Sure.

ASSISTANT: Sorry, there is no reservation found on your name.

USER: No problem, thanks for your service.

ASSISTANT: Thank you for choosing us.