Let your customers book their appointments online directly from your WordPress Web site or blog.
It’s a plug-in that enables current Appointment-Plus clients to easily place a “Book Now” or “Schedule Now” button on their WordPress Web site or blog. The plug-in itself is not a scheduling application; rather, it helps you create and place a button that links directly to an Appointment-Plus online scheduling system. You must have an active account with Appointment-Plus in order to use this plug-in. For information on Appointment-Plus, visit http://www.appointment-plus.com.
Check Appointment-plus knowledgebase https://kb.appointment-plus.com/?m_id=100 for instructions.