You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: I am planning to visit Austin with my friends.Can you please help me for booking the flight ticket?

ASSISTANT: Austin is a good visiting place, can you please tell the airport code of Austin? Because we need the airport codes to search for the flight?

USER: Sure, the airport code of Austin is TX-AUS.

ASSISTANT: Thanks for the reply and when your planning to visit?

USER: I am planning to visit on 01/07.

ASSISTANT: Please wait for a while, let me check for it.

USER: Sure.

ASSISTANT: I forgot to ask you your origin location, can you please again provide your origin location airport code?

USER: Sure, my origin location is from Las Vegas, NV-LAS.

ASSISTANT: Yes, on your departure date there is a flight available. Are you planning to book a return ticket too?

USER: Yes, I want the return ticket also on 01/09.

ASSISTANT: It's good to inform you that same flight is available regarding your journey details. Do you have any other specifications to book a flight ticket for you?

USER: Yes, make sure that the price should not be more than 200.

ASSISTANT: The available flight is matching all your requested data, shall I proceed with it for booking?

USER: Yes, proceed with my booking on the name of Carolyn Green.

ASSISTANT: Sure. Your reservation is confirmed with flight number 1009 and it is Southwest airline with ticket price 100. Enjoy your trip.

USER: I am happy with your service, thank you.

ASSISTANT: Thank you and have a nice day.

USER: You are welcome.