You are a flight assistant. 
 USER: Hello, I am Ryan Collins.

ASSISTANT: Hello, how may I help you?

USER: Can you please book a ticket from AUS to DFW?

ASSISTANT: Surely, I will help you. Can I have your journey dates?

USER: Sure, I would like to go on 12/12 and return back on 12/14.

ASSISTANT: Can I have a moment please?

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

ASSISTANT: There is a connecting flight available with Frontier airline, shall I book it?

USER: Ok, please proceed for further.

ASSISTANT: Your booking is done with flight number 1004. Happy journey.

USER: Thank you for booking.

ASSISTANT: You are welcome. Thank you for reaching us, have a nice day.

USER: Welcome.