@Override
 public void msgHereIsMissingItems(List<Item> MissingItemList, int orderNum) {
   log.add("Received list of missing items");
 }
 @Override
 public void msgHereIsYourItems(List<Item> DeliverList) {
   log.add("Received items");
 }
 @Override
 public void msgCanDeliver(Map<String, Integer> canDeliver) {
   log.add("Received message can deliever");
 }
 @Override
 public void msgHereIsDelivery() {
   log.add("Received message here is delivery");
 }
 @Override
 public void msgHereIsOrder(Waiter w, String c, int t) {
   log.add("Received message here is order");
 }