You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you today?

USER: Could you help me in booking a flight ticket from DFW to ORD?

ASSISTANT: Sure, may I know your name please?

USER: My name is Justin Parker.

ASSISTANT: Ok, may I know on which dates your willing to travel?

USER: I want to fly on July 23, return on July 25.

ASSISTANT: Is there any specific class preference for you?

USER: I want economy class flight ticket.

ASSISTANT: Ok, may know your connection limit please?

USER: I want a flight with one connection.

ASSISTANT: Do you have any other specifications please?

USER: No.

ASSISTANT: There is a connecting flight of fare 100 with economy class in Southwest airline, shall I proceed to booking?

USER: Ok, proceed to booking.

ASSISTANT: Ok, I reserved your ticket with flight number 1026, depart time will be at 21:00PM and return time will be at 0:00AM.

USER: Thank you.

ASSISTANT: You are welcome.