You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I help you?

USER: Please help me out in booking the ticket from DEN to LAS.

ASSISTANT: Sure, I am glad to help you. May I know on what dates would you like to travel?

USER: My trip dates will be Sept 28 to Oct 1.

ASSISTANT: Do you have any connection limit?

USER: I need a connecting flight.

ASSISTANT: May I know your name?

USER: Margaret Clark here.

ASSISTANT: Do you have any specifications?

USER: I will prefer Economy class.

ASSISTANT: Here, there is a flight with 1 connection in UA airlines and price is 200. Shall I book?

USER: Please proceed.

ASSISTANT: Ok, your ticket has been booked with the flight 1025.

USER: Thank you.

ASSISTANT: Thank you for reaching us.