Caillou S02 E08 A Special Dog

Caillou and Mom meet a fascinating woman in the park. Caillou is quick to approach the woman because she has a friendly dog. He notices it isn't on a leash but in a special harness instead. After several questions she explains she is blind and her dog helps her do many things. Caillou and Mom end up visiting a school where the dogs are taught their special skills.