You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I assist you today?

USER: I am planning for a round trip from AUS, can you please help me to book the flight ticket?

ASSISTANT: Sure, please provide your destination airport code.

USER: I have to start my journey on 12/02 and return back on 12/04.

ASSISTANT: Please mention your destination airport code. Please mention the name for process.

USER: My destination airport code is also AUS. Yes, please book the ticket in the name of Brandon White.

ASSISTANT: There is a flight with price 100 and the connections 1 is available. Shall I confirm your ticket?

USER: Yes, you can proceed.

ASSISTANT: Your ticket is booked. The flight number is 1009.

USER: Thank you very much.

ASSISTANT: Welcome, have a great day.