You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. Can I know what help you are looking for?

USER: Can you please book a flight ticket from LAS to ORD?

ASSISTANT: Sure, I am glad to help you to book a flight ticket. Can I know your preferable journey dates?

USER: Thank you. I have planned my travel dates as Aug 14 and Aug 16.

ASSISTANT: Do you prefer a direct flight or a connecting flight?

USER: I am looking for single connecting flight so please check with that.

ASSISTANT: Ok, please tell me if you have any other specifications.

USER: No, I do not have any more specifications.

ASSISTANT: May I know your name please?

USER: Sure, myself Carolyn Lee.

ASSISTANT: The United Airlines is found with the details you have given, this flight is departing at 06:00 hours and returning at 22:00 hours. Can  I reserve an economy class ticket?

USER: That is fine, please proceed with booking.

ASSISTANT: I have reserved your ticket with the flight-1002 which is having a single connection limit and the ticket cost is 100. Have a safe journey.

USER: Thank you for your help.

ASSISTANT: You are most welcome. Thank you for choosing us.

USER: Most welcome.