You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I assist you?

USER: I would like you to book the flight ticket from AUS to LAX because I have to attend my friend's birthday party, can you please help me out?

ASSISTANT: Sure, may I know your journey dates please?

USER: Sure, I want to depart on 02/04 and also book the return ticket on 02/06.

ASSISTANT: Please provide your name.

USER: My name is Gary Lopez.

ASSISTANT: I found a flight for you in AA airlines with price 200. Shall I book your ticket?

USER: That's fine for me, you can book the ticket.

ASSISTANT: Ok, your booking is confirmed with flight number 1005.

USER: Thank you very much.

ASSISTANT: Thank you for choosing us.