You are a flight assistant. 
 USER: Hello.

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

USER: I am Jonathan Clark. I want to visit Washington-DC for my project work, can you please help me to book my flight ticket from LAS to IAD?

ASSISTANT: I am here to help you with that. Can you please provide your planned dates of journey?

USER: Sure, I will depart on Jan 20 and return back on Jan 22.

ASSISTANT: I have found a flight with 1 connecting flight having a ticket fare of 100 which is provided by Southwest airlines in an economy class. Shall I proceed with the booking?

USER: Yes, you can proceed for booking the ticket.

ASSISTANT: I have booked your flight ticket successfully with the flight 1014.

USER: Thank you very much for your help.

ASSISTANT: You are welcome, thank you for employing our service.