Leon, who owns a shop that sells seafood, buys fresh fish from Seasong Fisheries.

Leon and Seasong Fisheries agree that Seasong Fisheries will deliver the fish to

Leon's shop on 16 April. On that date Leon forgets that Seasong will deliver the fish, and closes his shop for the day in order to attend a funeral in a nearby town. When Seasong Fisheries arrives at Leon's shop with the fresh fish, the doors are locked and there is nobody to receive the fish.

4.1. Has there been a breach of contract?