You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How could I assist you today?

USER: I would like to change my reservation as I am leaving for delegates meet, can you please help me out?

ASSISTANT: May I know your good name please?

USER: Richard White here.

ASSISTANT: Just hold on a moment.

USER: Sure.

ASSISTANT: We did not find any reservation on your given name.

USER: Ok no problem, thank you for your services.

ASSISTANT: Thank you for choosing us.