You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I serve you for the day?

USER: I am Stephen Carter. I need to book a flight with connecting flight, Can you please help me for booking?

ASSISTANT: Sure, I am here to help you. Can you please mention the planned dates of your travel?

USER: I would like to travel from 07/19 to arrival on 07/21.

ASSISTANT: Please provide your airport codes.

USER: Source point is TX-AUS to TX-HOU.

ASSISTANT: Ok, please wait for a minute. We found an airline UA with flight number 1009.

USER: Sure.

ASSISTANT: Price 100 with a single connection. Shall I reserve your ticket?

USER: Ok, proceed for booking.

ASSISTANT: Your ticket has been reserved.

USER: Thanks for your information.

ASSISTANT: Thank you for choosing us.