You can create new Event Bookings in one of two ways.
You can access the modal directly by searching under the nine dots on your Salesforce homepage.
The Asset Calendar section in the top left of the screen, including filtering assets, selecting dates and saving preferred settings works like the Asset Overview page in your BookNow system. You can find instructions for the Asset Overview here.
The Booking modal in the bottom left of the screen works in the same way as the Edit Booking modal, but with some extra functionality. You can find instructions for the Edit Booking Modal here.