My question involves a child custody case from the State of: FL

The NCP was supposed to pick his summer weeks by May 1st. I am to pick mine by May 15th. The NCP has not notified me of the weeks he will be choosing. If he does not choose, why am I to do? Do I go ahead and pick my weeks on May 15th, without knowing his schedule? What if he decides later what weeks he would like? Does not choosing his summer weeks by the court appointed date mean that he will not get summer visitation?