You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I guide you?

USER: I would like to book a ticket from ORD to ATL, can you help me?

ASSISTANT: Sure.

USER: My travel dates are 09/16 and 09/18.

ASSISTANT: Please wait for a moment.

USER: Ok. I want to book a ticket in the name of Samuel Wilson.

ASSISTANT: May I know your name please? Sure. Sorry, no flight is available for you as per your details.

USER: No problem. Thank you for checking.

ASSISTANT: Ok.