You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I give assistance to you?

USER: Can you please help me in cancelling my recent reservation?

ASSISTANT: Sure, we are glad to help you with cancellation.

USER: Thank you.

ASSISTANT: May I know your name, to proceed further?

USER: I am Katherine Phillips.

ASSISTANT: Ok, please wait for a while.

USER: Sure.

ASSISTANT: Sorry to tell you that, there was no reservation found on your name to cancel it.

USER: Its ok, thank you.

ASSISTANT: Thank you for availing us.