You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I serve you today?

USER: My name is Carolyn Perez from Houston. I want to attend for a CBI secret meeting which is going to be held at Chicago, IL - ORD to know about new techniques and ideas to reduce the crimes. Can you please aid me for booking with a fare of 500?

ASSISTANT: Sure, we are here to help you. Kindly mention your take off airport code.

USER: Sure, it is Houston, TX - HOU.

ASSISTANT: May I know your travel dates?

USER: My travelling dates are on 10/17 to 10/19.

ASSISTANT: There is a flight with your requirement, airline is UA with price 100 and single connection. Shall I proceed with booking?

USER: Ok, please proceed for booking.

ASSISTANT: Your booking is done and flight number is 1016.

USER: Thanks for your response.

ASSISTANT: Thanks for reaching us.