I couldn't find a paper for this one. Can anyone else? Dialogue really is a massive missing piece in NLP (and machine interaction in general). Without dialogue

I couldn't find a paper for this one. Can anyone else? Dialogue really is a massive missing piece in NLP (and machine interaction in general). Without dialogue, we're giving algorithms much harder tasks than we give people. A person can always ask clarifying questions before answering. (Dialogue is of course much harder for other reasons) So it'd be really nice to read about their self-described "breakthrough" in more concrete terms than a press release that reads more like an advertisement than anything else.