If you want to stop online bookings but still allow internal bookings there are two ways:


1) Create a Periodic Close out

Follow this guide on Periodic Close Outs (Recurring) 


2) Exception Date


In Settings > Restaurant Details > Other Details > Booking and you can add an exception date:



Add in your dates


Click Create Exception


Remember to save at the bottom of the page!


You can also remove them by pressing the x next to the date.