You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you today?

USER: Rebecca Davis here. I want to cancel my recent reservation which I have done earlier, can you please help with it?

ASSISTANT: Sure Davis, I am here to help you.

USER: Thank you.

ASSISTANT: Sorry Davis, no reservation found as per your name to cancel it.

USER: Ok, not a problem. Thank you for the information.

ASSISTANT: You are welcome.