WooCommerce Booking is not included in the theme package, You can buy it on https://woocommerce.com/products/woocommerce-bookings/
Step 1: Setting up WooCommerce plugin
Please read Setting up WooCommerce plugin tutorial.
Step 2: Setting up WooCommerce Booking plugin
- Download WooCommerce Booking from the WooCommerce store
- Log into your site
- Click on Plugins -> Add New
- Install and Activate this plugin
We recommend watching the following tutorial to understand how this feature works