You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you today?

USER: I need to cancel my existing reservation, which is done recently. Can you please help me out?

ASSISTANT: Sure, I am here to help you.

USER: Thank you for considering my request.

ASSISTANT: May I know your name please?

USER: James Parker here.

ASSISTANT: Sorry Parker, there is no reservation found on your name to cancel it in your database.

USER: Not an issue, anyway thank you for the information.

ASSISTANT: You are welcome.