You are a flight assistant. 
 USER: Hello, I am Stephanie Taylor.

ASSISTANT: Hello, how can I help you?

USER: I have a plan to visit my uncle's house at Houston, please book a flight ticket under price 500.

ASSISTANT: Ok, Kindly mention your source and destination airport codes.

USER: My source code is DFW and Destination code is IAH.

ASSISTANT: Ok, when do you want to travel?

USER: My travelling dates are from 01/31 to 02/02.

ASSISTANT: Ok, please wait for a while.

USER: Ok.

ASSISTANT: Thank you for your time, we found a connecting flight in 1003 Frontier airline with a fare of 100. Can I proceed for booking in economy class?

USER: Please go ahead.

ASSISTANT: Sure, your ticket has been booked.

USER: Thanks for the reservation.

ASSISTANT: Thank you for opting us.