This is due to the fact that Disney has not released any Fantasmic packages past June yet. They try to get them out 180 days in advance, but that is not always the case. If you are unable to book online (the dates are grey on the calendar), you cannot book any other way. Neither forcing in a date nor calling will get you an ADR. There is no open schedule yet. I learned this from a cast member recently when inquiring as to why the Dessert party is only posted through June. She informed me that all special events open up the same time online as they do by phone. That being said, I always suggest calling if your needed time is booked out online (meaning it is blue and you can select it but the system says there are no available times). The phone agents sometimes have access to dates that are closed off online (like Le Cellier dinner post 03-01-11 and others).