You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I serve you today?

USER: I am Kenneth King. I want to cancel my reservation, so please help me in the cancellation.

ASSISTANT: Sure, we are here to help you. Please wait for a while.

USER: Ok.

ASSISTANT: Sorry, there is no active reservation on your name to cancel.

USER: Not an issue. Thank you.

ASSISTANT: Thank you for choosing us.