If it is too late to book regular games/tours - depending on the minimum booking limits settings - you can show a "Call to book" button for those slots to encourage customers to call your business and inquire about last-minute bookings.
When customers click on the "Call to book" button, they can call your business phone number - set in Settings>Business details and logo - directly from the booking page.
To enable the Call to book feature for a game/tour:
1. Go to Settings>Tours/activities
2. Click on a game/tour.
3. Go to the Schedule tab
4. In the Booking in advance (min) section, from the If too late to book[1] dropdown menu, select show "call to book" (only if same day).
5. Save
The "Call to book" button shows only for same-day slots.