You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you today?

USER: I am Carol Clark want to attend a workshop in Austin, Can you help to book a direct flight?

ASSISTANT: Sure, could you provide me your airport codes?

USER: Sure, my airport codes are DCA and AUS.

ASSISTANT: OK, May I know your travel dates?

USER: Yes, my travel dates are 02/13 and 02/15.

ASSISTANT: We found a flight with your requirement, airline is SouthWest with price 200 and flight number 1019. Can I proceed with booking?

USER: Ok, proceed with my booking.

ASSISTANT: Your booking is confirmed.

USER: Thank you.

ASSISTANT: Thanks for reaching us, have a good day.