You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you for the day?

USER: Can you help me in booking a flight ticket from IAD to LAS?

ASSISTANT: Sure, I will help you with that. May I know your planned journey dates please?

USER: I want to travel on 12/10, and return on 12/12.

ASSISTANT: Would you like to travel in a connecting flight or in direct flight?

USER: I need a break in my journey.

ASSISTANT: Do you have any other specifications?

USER: I want to return in the afternoon time.

ASSISTANT: Southwest Airlines is providing connecting flight on this route with a ticket fare of 100 and flight departs at 13:00 hours and arrives at 18:00 hours, shall I book your ticket in this flight?

USER: Proceed with the booking.

ASSISTANT: May I know your name for booking purpose?

USER: I am Melissa Thompson.

ASSISTANT: Your booking is done in economy class and the flight number is 1026.

USER: Thanks for the help.

ASSISTANT: Thank you for reaching us, have a safe journey.