I don't know for sure, but I know when my W and I went to mediation, getting the first meeting booked took a while for everyone's schedule.
Also, mediation MIGHT have each of you in separate to go through what you know and what you think you want. The idea is, they are supposed to help both sides.
Once you know who your H picked as a mediator, get some references. And if possible, like many things, shop around. Find three, pick the one you are both comfortable with.
