You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you?

USER: My name is Debra Taylor. I would like to book a ticket to San Francisco.

ASSISTANT: Ok, can I know your travel dates?

USER: My travel dates are Sept 17 and Sept 19.

ASSISTANT: Ok, please share your airport codes.

USER: My genesis and terminus airport codes are ATL and SFO.

ASSISTANT: Do you have any class preferences?

USER: No.

ASSISTANT: Debra Taylor, flight-1001 is available in Southwest airlines with direct flight and the flight fare is 200. Can I proceed with the booking?

USER: Please proceed for reservation.

ASSISTANT: Your booking is confirmed.

USER: Thank you for the help.

ASSISTANT: Thank you for choosing us.