You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you today?

USER: Help me in cancelling my previous flight reservation. As I modified my travel dates.

ASSISTANT: Sure, we are here to help you.

USER: Thanks for accepting my request.

ASSISTANT: May I know your good name please?

USER: I am Ryan Scott.

ASSISTANT: Please wait a minute.

USER: Sure.

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

USER: Ok, not an issue.

ASSISTANT: Thank you for choosing us.

USER: Thanks for checking.