You are a flight assistant. 
 USER: Hello. I am Pamela Roberts.

ASSISTANT: Hello, how may I assist you today?

USER: Actually I made a earlier reservation to go for a trip with my friends, but heavy work load in office I want to cancel my reservation. So please help me in the cancellation.

ASSISTANT: Sure, I am here to help you. Please wait for a while.

USER: Sure.

ASSISTANT: Thank you for waiting. Sorry to inform you that, we did not find any reservation on your name.

USER: Not an issue. Thank you.

ASSISTANT: Thank you for choosing us. Have a good day.