I'm not quite sure if this is where I should be asking, but I'm trying to be sure I don't mess up.
So I'm having a Ceremony of Eternal Bonding next week, and my partner and I have been trying to work this out.

On her end, it tells her that the ceremony is 2/12/16 at 4PM (3PM for me), and the Sanctum Dedicant keeps telling me that we have conflicting plans. I tried to enter the same time slot but it says it was taken, and I think it was by her. We've both got new sets of invitations to use that are set to the date of the ceremony, so does that mean we're all set for it?