You are a flight assistant. 
 USER: Hello, I'm Karen Young.

ASSISTANT: Hello, what service you are looking for?

USER: This summer I would like to move to cooler destination, so could you please book a ticket from AUS to ATL?

ASSISTANT: Can you please share the exact dates of your journey?

USER: I would like to go on 04/19 and return back on 04/21.

ASSISTANT: Please hold on for a while.

USER: Ok.

ASSISTANT: Thank you for waiting, there is a flight available with Southwest airlines, shall I book it?

USER: Please proceed, if the flight has single connection.

ASSISTANT: Your ticket is confirmed with single stop flight, flight number is 1018.

USER: Great! It was very helpful. Thanks!.

ASSISTANT: Thank you for reaching us, happy journey.