So uh, skipping a bunch of excess lore:
"Dogs are one of the most beloved pets in the world. They are loyal, friendly and make great companions. Despite their differences, all dogs share a few key traits – they are affectionate, protective of their owners, and eager to please. Dogs require proper care, including regular exercise, grooming, and veterinary checkups. In return, they provide unconditional love and can even improve their owner's physical and mental health. Whether as a family pet or a working animal, dogs have been an integral part of human society for thousands of years."
The chat bot is named after a dog because a dog-named chatbot is more likely to make users treat it with patience, kindness, and understand that it does silly things sometimes, but it means well.
Its marketing. PR.