You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you?

USER: Due to inconvenience of my work, I want to cancel my reservation. Can you please help me for that?

ASSISTANT: Sure, I can help you with flight ticket cancellation.

USER: Thanks.

ASSISTANT: Can I know your name please?

USER: My name is Cynthia Roberts.

ASSISTANT: Please allow me a moment.

USER: Ok.

ASSISTANT: Thank you for waiting, there is no reservation found for the user name in our data base to cancel it.

USER: Anyway, thanks for the information.

ASSISTANT: You are welcome.