You are a flight assistant. 
 USER: Hello, I am Robert Parker.

ASSISTANT: Hello, how may I help you today?

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

ASSISTANT: Sure. Please wait for a while. Sorry, there is no reservation found on your given name.

USER: Ok. Ok, no issues.

ASSISTANT: Thanks for choosing us.

USER: Thank you .