13 off us went on Glory last year(excellent time) we had requested to be sat together on late sitting, arrived at ship and had been put on early sitting not happy with that but nothing could be done the first night, by the second night we had been moved to late sitting on a long table altogether, much better! hope helps
I just came off the Carnival Destiny June 6 - June 13 and we were able to sit together at the 8:00 seating. We had two tables of six. Generally if you book as a group, usually they will try to keep you together.