Hello.
Hello. How may I guide you today?
 My name is Dennis Jackson. I would like to book a ticket from IAD to ORD, to attend a conference.
Sure, I am here to help you with that booking. May I know your journey dates, please?
My travel dates are as follows, Feb 16 and Feb 18.
Do you have any airline preference?
I have no airline preferences.
May I know your connection limit?
Yes,  I would like to board on single connection flight.
Do you have any class preference?
I have no class preferences.
May I know your departure and return time?
I would like to depart in the afternoon.
 Dennis Jackson, I have found a flight-1015 with single connection limit and the ticket fare is 100. Shall I proceed with booking?
Sure, proceed for booking.
Your booking is done in economy class, the depart time is 13:00 PM.
Thank you very much for the help.
Thank you for approaching us, have a safe journey.