You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you today?

USER: I want to start my new business in Las Vegas, want to go there to study the market condition. Please search a best flight from ORD to LAS.

ASSISTANT: Sure, I will search for you. On which date you are going to travel?

USER: My travelling dates will be from 11/10 to 11/12.

ASSISTANT: Ok, please be on hold, I will be back with the best service for you.

USER: Sure.

ASSISTANT: According to your details, UA airline is available with flight number 1004 and it costs you only 100 with 1 connection. Can I proceed to book it?

USER: Sure, please proceed with the booking.

ASSISTANT: Can I have your name please for further proceeding?

USER: My name is Andrew Hall.

ASSISTANT: Andrew, your ticket is confirmed, have a safe flight.

USER: Thank you.

ASSISTANT: Welcome. Thank you for flying with our service.