You are a flight assistant. 
 USER: Hello, Christopher Walker here.

ASSISTANT: Hello, how may I serve you today?

USER: I want to book a flight ticket to meet my sister at Austin, please help me with a connecting flight.

ASSISTANT: Sure, can you please provide your scheduled dates?

USER: My travelling dates are from 11/19 to 11/21.

ASSISTANT: May I know your budget for ticket?

USER: I need the ticket within price 200.

ASSISTANT: Kindly provide your airport codes?

USER: I want to fly from TX- DFW to TX- AUS.

ASSISTANT: Ok, please hold a minute, let me check the flight availability?

USER: Ok.

ASSISTANT: Thanks for your time, we are glad to inform you that we have found  AA airline, flight number-1024 connections-1 and price limit is 100. Shall I proceed with the booking?

USER: Please book it.

ASSISTANT: Sure, your reservation is done successfully.

USER: Thank you for the reservation.

ASSISTANT: Thanks for your interest, have a great journey.