I called in my 90 day window to make ressies for 2 at LeCellier, CRT, Mama Melrose's, Sci-Fi, Brown Derby, Wolfgang Puck, Artist Point, Coral Reef, Rose & Crown, Tony's Town Square, San Angel Inn and Rainforest Downtown...then, I had to call back in my 55 day window to change 7 of these around to different times and days with no problem.
The first series of calls were over an 8 day period and I had a different CM everyday (it was before the new rule of 90 day, all days), but when I called to do the 7 changes, I had one extremely nice CM (who's name I couldn't get because she said it so fast!).
I was shocked a few weeks ago when someone else mentioned they had trouble with a two person ressie, basically because I'm the most unlucky person I know and I had no trouble! I did ask the nice CM who took my changes why some people were having trouble with two person ressies, I told her that some people mentioned it might be lack of two person tables, but she said that this was not the case, they could seat two people at a four person table if need-be. She said the problem lies with when most people book the two person ressies...most of which are couples and they tend to eat later than families and they all want to pile in the restaurant at the same time. She did go on to say that although they can seat two people at a four person table, they do have to leave some four person tables open for when four people arrive. I don't have a "couple" situation since it's me and my sister and I guess we don't eat too late (although our Artist Point ressie is for 8 pm) and ours are the non-clashing kind of ressies.
The purpose of this very long, very boring story is that maybe try adjusting your times. It might help!