You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how do I help you today?

USER: I need to book a flight ticket from AUS it's a round trip, Can you please help me for booking?

ASSISTANT: Sure, may I know your budget limit?

USER: I can pay up to 1000.

ASSISTANT: Could you let me know your depart and return dates?

USER: I would like to travel on 12/14 to 12/16.

ASSISTANT: We found your flight on AA airline, flight number 1022 with the fare of 100.

USER: Ok, proceed for booking.

ASSISTANT: Your ticket has been booked.

USER: Thanks for your information.

ASSISTANT: May I know your name?

USER: My name is Ruth Miller.

ASSISTANT: Thanks for reaching us.