Context Based Reminders

I think it would be awesome to have reminders that aren’t time based, but context based. What do I mean with that..? So for example, “remind me to tell my friend Ben about my new dog, the next time I see him”. The reminder should then come up when I write something in the style of “Today, I have a coffee date with Ben”. I know they wouldn’t be as reliable as time-based reminders but that would make Kin a lot smarter.