I have a very energetic Labrador who needs daily walks to burn off some energy. I'm looking for someone reliable and experienced with dogs, preferably someone who can take him for a 1-hour walk in the mornings or early afternoons. He is friendly but quite strong, so some experience handling larger dogs would be great. Ideally, the walker should be available at least three times a week. Please let me know if you have references or experience with similar breeds.