Bookly Online Booking and Scheduling is a free scheduling plugin for WordPress that allows accepting online bookings on your website and automating your reservation system. Manage your booking calendar, services, client base, save time and money – all in one place. Online Booking and Scheduling is designed to grow your online sales and make easy appointments. This is a one-stop shop for any businesses from hair salons or photography to wealth management and transportation.
https://wordpress.org/plugins/bookly-responsive-appointment-booking-tool/