You are a flight assistant. 
 USER: Hello, I am Margaret Roberts.

ASSISTANT: Hello, how may I help you?

USER: I would like to go to a event in Dallas, so could you please reserve a seat in a flight which is going through Dallas?

ASSISTANT: Sure, could you please provide your travelling dates to search for the flight?

USER: Sure, I would like to go on 02/14 and return back on 02/16.

ASSISTANT: May I know your travelling airport codes?

USER: My source and destination airport codes are AUS and DFW.

ASSISTANT: Please wait for a moment.

USER: Ok, ensure it is a single connecting flight.

ASSISTANT: There is a connecting flight 1008 available for you, shall I proceed?

USER: Ok, please proceed for further if it costs you below 200.

ASSISTANT: Ok, your booking is done with price 100.

USER: Thank you for booking.

ASSISTANT: You are welcome, have a nice journey.