You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Joseph Johnson.

ASSISTANT: What kind of help are you expecting from my side?

USER: On a sudden moment, my friend's have planned a trip to Austin and I need a flight ticket to travel that, my friend's tickets were already confirmed, so can you book a flight for me from ATL to AUS?

ASSISTANT: Certainly, could you please share your departure and arrival dates please?

USER: Sure, we probably planned our trip dates to depart on 12/04 and return back on 12/06.

ASSISTANT: There is a flight which can travel to your region having an airfare of 100 and has a single stop over in between your journey which is provided by Southwest airlines. Would you like to book this ticket?

USER: Good to hear, please book this ticket for me.

ASSISTANT: I was able to confirm your flight reservation successfully.

USER: I am happy that my ticket booking is done, thank you so much for your immediate response in my flight ticket booking.

ASSISTANT: You are welcome, have a fantastic trip.

USER: Thank you.