You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you?

USER: I am Brenda Anderson. I want to cancel my last reservation. Can you please help me out?

ASSISTANT: Sure. Please wait for a moment, I will check the reservation status and let you know.

USER: OK.

ASSISTANT: Unfortunately, we did not found any reservation on your name.

USER: Thank you for the information.

ASSISTANT: Thanks for opting us.