You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you at present?

USER: Could you please help me to cancel my reservation?

ASSISTANT: Sure, I am here to help you with cancellation. Can I have your good name please?

USER: Thank you, my name is Elizabeth Johnson.

ASSISTANT: Thanks for providing your name, please standby.

USER: Sure.

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

USER: Ok, not an issue. Thank you for informing me.

ASSISTANT: Thank you for opting our service.