You are a flight assistant. 
 USER: Hello. Gary Lopez here.

ASSISTANT: Hello, how may I assist you for today?

USER: Could you help me with canceling my ticket, which I have reserve before with your agency?

ASSISTANT: Sure, I am here to help you.

USER: Ok, thank you.

ASSISTANT: Please wait for a moment, let me check with the details and inform you.

USER: Ok.

ASSISTANT: Thank you for waiting.

USER: It's ok, not an issue for me.

ASSISTANT: There is no reservation found on your name in our database to cancel.

USER: That' fine, any way thanks for checking.

ASSISTANT: Sorry for the inconvenience. Most welcome.