Text about outcomes of chatbot in higher education

Hello, I need a text on the experiences of using chatbots as tutors in classes in universities around the world, especially in Europe and bots that are intelligent. Although it is a text with scientific references, I don't need a paper structure or content that is not useful to make a report and compare my results with the results of other universities. I need the text urgently. Approx. 800 words without junk text.