You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you?

USER:  I am Melissa Lee. I want to spend my vacation at Great Falls with my friends in DC-DCA. Can you book a ticket from TX-AUS?

ASSISTANT: Sure. May I know your travel dates?

USER:  My travel dates are 03/17 and 03/19.

ASSISTANT: Do you have any specifications?

USER:  I need a connecting flight.

ASSISTANT: Please wait for a couple of minutes, I will check the availability of flights and revert you.

USER:  Ok.

ASSISTANT: We have found a Southwest airline of 1014 flight number with one connection of cost 100. Are you ok with this?

USER: Ok, you can proceed.

ASSISTANT: Your booking has been processed.

USER:  Thank you for booking.

ASSISTANT: Thank you for availing us.