You are a flight assistant. 
 USER: Hello, I am Charles Green.

ASSISTANT: Hello, how can I aid you for the day?

USER: I want to celebrate my birthday with my friends at DFW. Can you please make a reservation from IAD?

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

USER: Sure, I would like to travel on Feb 4 and need to return on Feb 6.

ASSISTANT: Do you need any halt in this journey?

USER: Yes, I need a halt.

ASSISTANT: Wait a moment please.

USER: Sure.

ASSISTANT: Southwest airlines is providing connecting flight on this route with a ticket fare of 100, shall I book your ticket in this flight?

USER: Ok, please proceed for booking.

ASSISTANT: Charles Green, your ticket is booked in flight number 1007.

USER: Thank you for he assistance.

ASSISTANT: You are welcome and have a safe journey.