I would like to have a feature that would allow me to roll out default/managers hold back tables daily in advance, which wouldn't appear in my reporting. 

In the interim i have booked in tables called Managers Table, however that has messed up my reporting (future bookings, cancellations etc.) 

I cannot use a separate area, as suggested, as these tables would be at varied times and table sizes with individual duration, just as a reservation would and be bookable before and after.

You can see an example of what i'm looking for at our diary.