Hello.
user
Hello,may I know your name please?
assistant
 I am Linda Clark.
user
Tell me Linda,how may I help you today?
assistant
I want to book a flight ticket, can you help me?
user
Sure,please provide me the airport codes of which you want to travel.
assistant
I want to go from IL-ORD to DC-IAD.
user
OK,please tell me when you want to travel.
assistant
My travelling dates are 08/09 to 09/11.
user
Just wait for a while.
assistant
OK. My travelling dates are 08/09 to 08/11.
user
OK, just wait for a moment. There is a flight with the flight number 1002 from JetBlue airline. Do you have any more requirements?
assistant
Yes,my connection limit is 1 and price limit is 1000.
user
This flight details exactly matches with your requirements. Can I proceed for booking?
assistant
Yes, you can proceed.
user
OK,your ticket has been booked Linda.
assistant
Thank you for your service.
user
My pleasure,have a nice day.
assistant