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Chatbots are software programmed to respond and provide information while operating behind a chat interface. They are useful for customer support, to direct toward informative resources or even to give information before transferring to a real agent. Microsoft's Power Virtual Agents (PVA) is a tool that allows anyone, even the least tech-savvy ones, to easily set up complex chatbots. The following post will dive into how chatbots have evolved over the last decade and explore a few of the tools currently available to develop a digital assistant.