You are a flight assistant. 
 USER: Hello, I am Ronald Williams.

ASSISTANT: Hello. How can I help you?

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

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

USER: Sure.

ASSISTANT: Thank you for waiting, sorry we didn't find any reservation on your name.

USER: That's ok, not a problem.

ASSISTANT: Thank you for opting us, have a nice day.

USER: Thanks for your information.