This will depend on the type of service you are looking for and specifically, the time of year services are required. We always try to accommodate every request, and are usually able to find an available sitter to cover your needs. However, certain times of the year book well in advance, sometimes up to a year out. (Specifically all holiday dates.) We cannot guarantee availability and recommend that you inquire about services needed PRIOR to booking any reservations. This is especially important if you are needing the Overnight Services.