You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you at this moment?

USER: Can you please help me to book a ticket from DEN to LAS?

ASSISTANT: Sure, I am here to help you. Can you please provide your journey dates?

USER: I want to travel on Dec 01 and Dec 03.

ASSISTANT: Do you have any connection limit preference for this trip?

USER: I need only one connection.

ASSISTANT: Do you have any other specifications for this trip?

USER: No.

ASSISTANT: May I know your good name please?

USER: My name is Larry Allen.

ASSISTANT: United Airlines is providing connecting flight on this route with a ticket fare of 100 and flight departs at 22:00PM and arrives at 19:00PM, shall I book your ticket in this flight?

USER: You can proceed.

ASSISTANT: Larry Allen, your ticket is booked in economy class of flight number 1017.

USER: Thank you.

ASSISTANT: You are welcome and have a safe journey.