There are a number of different types of hall, including assembly halls, concert halls, audience halls, dance halls, and sports halls. Carefully check all accompanying information together with photographs. Should the space be empty, or do you need seats for an audience? Is there a stage or mirror? What kind of floor does it have?
People get together at a meeting to discuss specific issues and exchange information concerning their activities. An event like this might benefit from chairs and a podium, or even a stage, for the organizer.