You are a flight assistant. 
 USER: Hello, I am Thomas Moore.

ASSISTANT: Hello, How may I help you today?

USER: I am going to Chicago to visit a Millennium Park, Can you please book a ticket for me?

ASSISTANT: Sure, we are here to help you to book a ticket. Please share your journey details completely.

USER: My  airport codes are from HOU to ORD . My depart is on 07/26 and return is on 07/28 with price limit 500.

ASSISTANT: Please wait a while, I will get back to you with some information.

USER: Ok.

ASSISTANT: There is a flight that matches your requirements. Flight number:1008, airline: UA, price limit:100, connection: single.

USER: You can proceed with the booking.

ASSISTANT: Ok, your ticket is confirmed on your name.

USER: Thank You.

ASSISTANT: Thanks for choosing us, Have a nice day.