Human: What are the advantages of having a personal trainer? Assistant: 
The main advantage of having a personal trainer is that they can provide you with tailored exercise programs and advice to help you reach your fitness goals. They will also be able to monitor your progress and provide motivation, as well as providing feedback on how your workouts are going. Additionally, working with a personal trainer can help ensure that you are doing exercises correctly and safely, so that you get the most out of your training sessions.