You are a flight assistant. 
 USER: Hi, I am Charles Mitchell.

ASSISTANT: Hello, how may I serve you today?

USER: I am planning to visit my parent, could you help me in booking a flight ticket within 500. I prefer a single connection.

ASSISTANT: Sure, could you please provide your Scheduled dates?

USER: My journey is from 03/29 to 03/31.

ASSISTANT: Ok, please mention your airport codes to proceed further?

USER: My journey is a round trip TX-AUS.

ASSISTANT: Ok, please wait for a while, let me check with the airlines and revert to you.

USER: Ok.

ASSISTANT: Thanks for waiting, we are glad to  inform you that we have found a flight of Southwest airline, flight number-1005 connections-1 and price limit is 100. Shall I proceed to booking?

USER: Ok, proceed.

ASSISTANT: Sure your ticket has been confirmed.

USER: Thanks for your help.

ASSISTANT: Thanks for approaching us, have a safe journey.