Allows WooCommerce booking orders to be canceled by the cancel unpaid orders cron job.

woocommerce-cancel-unpaid-bookings.php

<?php
/*
 * Plugin Name: Cancel Unpaid Bookings
 * Author: WooThemes
 * Description: Allows booking orders to be canceled by the cancel unpaid orders cron job.
*/

// woocommerce-cancel-unpaid-bookings.php

function woocommerce_cancel_unpaid_booking_orders_from_admin( $return, $order ) {
	if ( 'wc-pending' === $order->post_status && '1' === get_post_meta( $order->id, '_booking_order', true ) ) {
		return true;
	}
	return $return;
}

add_filter( 'woocommerce_cancel_unpaid_order', 'woocommerce_cancel_unpaid_booking_orders_from_admin', 20, 2 );