Webinane

The easy to use free WordPress appointments plugin WP Appointments is packed with lots of innovative features that are rarest to be seen elsewhere. For example, both the front end and back end layouts are based totally on AJAX to give a seamless streamlined user experience. The ease of use goes beyond bounds. It can be used for a great variety of websites, such as doctors, spas, saloons, mechanic, personal trainers, lawyers, cleaning services, and so on. The outlook is high interactive and user friendly.
Features:
<iframe loading="lazy" class="youtube-player" width="750" height="422" src="https://www.youtube.com/embed/u_smM0ObkDU?version=3&rel=1&showsearch=0&showinfo=1&iv_load_policy=1&fs=1&hl=en-US&autohide=2&wmode=transparent" allowfullscreen="true" style="border:0;" sandbox="allow-scripts allow-same-origin allow-popups allow-presentation allow-popups-to-escape-sandbox"></iframe>
<ul>
<li>Totally AJAX-based Frontend & Backend</li>
<li>Interactive design with inspiring graphics</li>
<li>Multipurpose utility </li>
<li>Easy & quick installation</li>
<li>Auto Template Generator included </li>
<li>Email Template Builder </li>
<li>Managements of multiple locations or branches </li>
<li>Management of multiple services</li>
<li>Management of multiple workers</li>
<li>Extremely flexible timetable with time slots management </li>
<li>Fully device optimize layout</li>
<li>Translation support</li>
</ul>
Pro Version:
Pro Version of Wp Appointments is up for sale on CodeCanyon with countless extra features. Pro Version is covering 8 niches and more are on their way. In the pro version you can manage appointments, bookings, locations, services, team members, timetable, payment gateways and users. 
<a href="http://codecanyon.net/item/wpappointments-paid-appointments-system-wp-plugin/14480806" rel="nofollow ugc">Upgrade to Pro Version</a>

Wp Appointments

With totally AJAX based front & back ends, WP Appointments is a fully managed and flexible tool for building powerful appointments systems.

Automattic

WooCommerce

royho

WooThemes

Boro Sitnikovski

Akeda Bagus

laurendavissmith001

Em Shreve

Jesse Pearson (a11n)

Accommodation Bookings is a free add-on for WooCommerce and the WooCommerce Bookings extension that makes it easier for you to rent out your space or run a hotel.
This extension extends Bookings and makes it possible to:
<ul>
<li>Easily configure room rates for specific nights.</li>
<li>Reservations that span nights instead of days.</li>
<li>List check-in/check-out information on the product page, cart, and order pages.</li>
</ul>
Accommodation Bookings is fully <a href="https://woocommerce.com/products/woopayments/" rel="nofollow ugc">compatible with WooPayments</a>.

WooCommerce Accommodation Bookings

This plugin is not working on currency change with WPML. Just improve this plugin.

Good start but needs improvement

An add-on for WooCommerce Bookings, making it easier to sell hotel rooms, apartments, and spaces to your customers with WooCommerce.

Wp Appointments vs WooCommerce Accommodation Bookings