The new trend seems to be Artificial-Intelligence powered chatbots. In an interesting experiment, a university professor replaced one of his assistants by such a chatbot. The students did not detect it and actually wanted to nominate it as the best assistant in the class! (see ‘Innovations
What happened when a professor built a chatbot to be his teaching assistant‘)
Actually it would be interesting to have a test or some kind of identification that would enable us to determine if we are interacting with a chatbot or a human. But we need to be aware that it will be increasingly the rule that our interface will be with robots. In 5 year time it might even be the majority of the customer service we will be facing. For sure that will produce sometimes astonishing results.