In Magento 2 Advanced Booking and Reservation module, the admin has a separate section where the admin can view the complete list of the Booking products and manage them as well. Navigate to the Advanced Booking product -> View Bookings Products as per the image.
Here, the admin can view the complete list of all the Booking Products. To create the Booking Product, click on Add New Booking button. And click on Edit link if want to edit the booking product.