You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I aid you?

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

ASSISTANT: Sure, I can help you with that. May I know your good name please?

USER: My name is Sharon Roberts.

ASSISTANT: Please wait while I'll check your reservation status.

USER: Sure.

ASSISTANT: Sharon Roberts, there is no active reservation found under your name to do changes in that.

USER: Ok, that's not a problem.

ASSISTANT: Thank you for choosing us.

USER: Thanks for your information.