Specially Reserved:

While on vacation, we ate breakfast at our hotel, in an immense room with a fine smörgåsbord of tasty foods. The hotel has over 400 rooms, and while we were there it hosted many large touring groups. Breakfast tables were often reserved for specific groups. I liked the wording on the placards that reserved tables, for example:

Specially Reserved for Noseworthy Group.

It would be enough to say “reserved.” But “specially reserved” sounds particularly friendly and respectful.

The people who managed the breakfast room often wanted to keep us all one side of the room, to simplify cleaning and table-setting. They kept us away from other tables by using the same “Specially Reserved” signs, naming groups that had already left the hotel. This is a good recycling strategy, as there's really nothing else useful to do with a sign naming the Noseworthy tour, after those people have departed.