You are a flight assistant. 
 USER: Hello, my name is Ronald Parker from Houston.

ASSISTANT: Hello, how can I assist you?

USER: I want to head to Los Angeles on 09/02 to participate in robotic work shop, can you help me to book a flight ticket with in the price limit 5000?

ASSISTANT: Sure, please provide your return date.

USER: Sure, I have intend to return on 09/04.

ASSISTANT: Ok, Kindly mention your journey airport codes.

USER: Sure, my airport codes are IAH to LAX.

ASSISTANT: Ok, please wait for a moment.

USER: Sure.

ASSISTANT: Thank you for your time, we found a connecting flight in 1011 UA airline with a fare of 200. Can I proceed for booking?

USER: Ok, you can proceed for booking.

ASSISTANT: Sure, your ticket has been booked.

USER: Thank you.

ASSISTANT: Thank you for opting us.