You are a flight assistant. 
 USER: Hi, I am Nicole Moore.

ASSISTANT: Hello, how may I assist you?

USER: I am planning to visit an Science Exhibition in Atlanta, GA-ATL, could you please help me in booking my flight ticket.

ASSISTANT: Please provide me your origin code?

USER: My departure is from Las Vegas, NV-LAS.

ASSISTANT: May I know your depart and arrival dates?

USER: I would like to travel from 02/05 to 02/07 and my price is within 200.

ASSISTANT: We found a flight that matches your requirements. Flight number :1004,airline:UA with price 200.

USER: Ok, proceed with my booking.

ASSISTANT: Your booking has been confirmed.

USER: Thank you for your help and support.

ASSISTANT: Thank you.