Friendly labrador retriever used to living with people

our labrador named Max has been living with us for about two years. he is a very social dog and enjoys spending time around people. he loves going outside for walks but at home he is surprisingly calm and usually lies down near the couch. he grew up in a home environment so he is used to normal daily activity. the only reason for this listing is that our working hours recently became much longer and the dog stays alone for many hours during the day. we would prefer him to live with someone who has more time for walks and interaction.