I wouldn't be surprised if true AI is getting very close.
I don't think the little transcript included in the article demonstrates AI in any way. There are some excellent chat bots out there, very convincing. But they all reveal that they are just bots the longer the exchange continues.
As that technology gets used more and more it will get harder and harder to recognise a bot conversation. Just because they are able to provide varied, increasingly more relevant responses that doesn't make them truly intelligent, self aware or sentient.