First of all, train it to respond to the name, give it a simple and catchy name, and then call it by name after a while. If there is a response, give it a reward, small snacks and food If there is no response, ignore it. In this way, it will take about a week at most to form a conditioned reflex to the name. The next step is to train it to "come here" and call the dog to come. If there is no response, ignore it. If it runs over, give a reward. It won’t be long before you can say goodbye to the leash. Believe me, the Golden Retriever is very smart!