Hi, I am Rebecca Hall.
Hello. How can I serve you?
Please help me in booking a ticket from Washington, DC-IAD to reach Chicago, IL-ORD.
Sure. Can I know your travelling dates?
My travelling dates are from 09/18 to 09/20.
Do you need any break?
Yes, I need a break in between my journey.
We found a Frontier airline, flight number:1000 and the price is 100.
You can proceed to book.
Your flight ticket has been reserved.
Thank you for your service.
Thank you for consulting  us.