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

ASSISTANT: Hello, how may I help you?

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

ASSISTANT: Sure, I can do that for you. Please wait, let me check your reservation status.

USER: Sure.

ASSISTANT: Sorry, I did not find any reservation under your name in our database.

USER: That's ok, not a problem. Thanks for your information.

ASSISTANT: You are welcome and thank you for choosing us.