What happens if your ADR size changes? We may have friends coming to join us for a few of our days on the trip and they probably won't make their final decision till that week. (They live in FL) If we make an ADR for 6 people (there are 4 of us, 2 of them) and only the 4 of us show up at a restaurant, is there any problem with that? Or if we call just 24 hrs in advance to say the other part of our group isn't going - will we just LOOSE our reservation all together?