I haven't chatted with it, but obvious lapses like your example seems to be what they're trying to solve for - generally when you talk to another human, you remember what's just been said, even more than one step back. But I will say that most chatbots can ask you variations on the same question over and over without expecting the answers to be similar (or comment on them not being). I did think it was interesting that they're siloing the 'memory' for each conversation, which makes perfect sense for privacy reasons, but also presumably weakens the overall potential of the bot.