You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you at this moment?

USER: I am planning to watch sports live events in Atlanta, so please book a flight ticket from DEN to ATL.

ASSISTANT: Sure, I will help you with that flight ticket booking. May I know your planned travel dates, please?

USER: I will start on Oct 19, return on Oct 21.

ASSISTANT: May I know your name please?

USER: My name is Anthony Green.

ASSISTANT: Is there any airline preference?

USER: No.

ASSISTANT: Do you have any other specifications?

USER: I want direct flight.

ASSISTANT: There is a  direct flight-1005 in American Airlines with a fare of 200. Shall I proceed?

USER: Ok, proceed to booking.

ASSISTANT: Anthony Green, your booking is done in economy class.

USER: Thank you.

ASSISTANT: Most welcome, thank you for reaching us. Have a safe journey.