Note: If you have not set up a pass before, be sure to check out this help center article first on Passes

Besides the above setup for Passes there is not anything special for passes to be used with bookings. It is important though to create a new pass product that is different than the redeemable product. This helps with the reporting of your passes via the GL Report.

In the case I have setup below, I have created an online booking and within the cart, I was prompted to apply my "Booking Pass".
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