You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I guide you for today?

USER: I need to book a flight ticket from DFW to IAD, Can you please help me for booking?

ASSISTANT: Can you please share on what dates you are willing to travel?

USER: I would like to travel on 03/04 to return on 03/06.

ASSISTANT: Are you looking for a connecting flight or direct flight?

USER: I need a connecting flight.

ASSISTANT: Do you have any class preferences?

USER: No.

ASSISTANT: Do you have any other requirements that you are looking for?

USER: No.

ASSISTANT: Can you please provide your name to proceed further?

USER: Susan Rodriguez here.

ASSISTANT: There is a connecting flight with ticket fare 100 in Southwest airlines in economy class. Is it ok for you?

USER: Ok, proceed for booking.

ASSISTANT: Your booking is confirmed with flight number 1006. Depart time is 4:00 hours and arrival time is 0:00 hours.

USER: Thanks for your information.

ASSISTANT: Thank you for contacting us, have a nice day.