You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I assist you?

USER: Can you cancel my recent reservation which I have done previously.

ASSISTANT: Sure, may I know your good name please?

USER: Sure, Daniel Evans here.

ASSISTANT: Please wait for a moment.

USER: Ok.

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

USER: It's ok, thank you for your information.

ASSISTANT: Thank you for approaching us.