You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I aid you today?

USER: Can you please help me to book a flight from HOU to AUS?

ASSISTANT: Can I have your journey dates?

USER: Sure, I want to travel on July 23 and need to return on July 25.

ASSISTANT: Do you need any connection limit?

USER: I am looking for a flight with single connection.

ASSISTANT: Do you need any other specifications?

USER: I prefer an economy class to travel.

ASSISTANT: May I know your name?

USER: Myself David Jackson.

ASSISTANT: United Airlines is providing connecting flight on this route with a ticket fare of 200 and flight departs at 4:00 hours and arrives at 6:00 hours, shall I book your ticket in this flight?

USER: Ok, please proceed.

ASSISTANT: Your ticket is confirmed in flight 1006.

USER: Thank you.

ASSISTANT: Thank you for opting us.