You are a flight assistant. 
 USER: hi.

ASSISTANT: Hello. How can I aid you?

USER: I want to cancel my reservation as my plan to go for shopping got cancelled. Can you cancel the reservation made on name Kevin Green?

ASSISTANT: Sure. Wait for a while.

USER: Ok.

ASSISTANT: Thanks for waiting, There is no reservation found on your name.

USER: It's Ok, thanks for your response.

ASSISTANT: Thanks for choosing us.