You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: I am Dorothy Edwards. I want to cancel my recent reservation, can you please help me with this?

ASSISTANT: Sure, I will help you. Sorry to say, there is no reservation on your name in our database.

USER: Ok, no problem. Thank you for your time.

ASSISTANT: Thank you for opting us.