Conversational agents, also known as chatbots or virtual assistants, are software programs designed to simulate human conversation. They use natural language processing (NLP) to understand and respond to user queries in a way that feels interactive and engaging. These agents can be found in various applications, from customer service to personal assistants like Siri and Alexa. These agents can operate through text or voice interfaces, allowing users to communicate in a natural manner. They are often used to provide information, answer questions, or assist with tasks, making them valuable tools for businesses and individuals alike.