You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: I need to change my existing reservation, which is done recently. Can you please help me out?

ASSISTANT: May I know your name please?

USER: Thank you for considering my request. Myself James Young.

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

USER: Not an issue with this one, anyway thank you for the information.

ASSISTANT: Thank you for opting us.