can we have people stay different lengths of time? For example, we will be going for a week and my sister would like to join us but can't take a full week off from work so she'll only be coming for 4 or 5 days. There will be room for her in our suite so do we just let them know when we book that she will only be there part of the time? Will we have to buy park tickets for her for the whole week or will she be able to just get tickets for the days she will be with us? TIA