Add product types to front end of site.

functions.php

<?php

/**
 * Add the booking product and accommodation product type to the list on frontend of site.
 */
function sp_add_post_types( $types ) {
		$types['booking'] = __('Bookable product', 'woocommerce-bookings');
		$types['accommodation-booking'] = __('Accommodation product', 'woocommerce-accommodation-bookings');
		return $types;
}
if ( ! is_admin() ) {
	add_filter( 'product_type_selector', 'sp_add_post_types' );
}