You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you?

USER: I would like to change my reservation which is under my name. Can you please help me with that?

ASSISTANT: Sure, I will help you with your concern. May I know your name please?

USER: My reservation was done under the name Gary Clark.

ASSISTANT: Please hold on a moment.

USER: Sure.

ASSISTANT: Gary Clark, no reservation has been found on your name in our database.

USER: Ok, not an issue. Anyways, thank you for the information.

ASSISTANT: Thank you for choosing us.