You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: I want to cancel my recent reservation, can you please help me out?

ASSISTANT: Sure, I will help you.

USER: Thank you.

ASSISTANT: May I know your name please?

USER: Sure, my name is Shirley Phillips.

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

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

ASSISTANT: Thank you for opting us.