hmmm , I can , but it's non-confirmed , I mean I've talked with people while they are dreaming or while I am in their dreams , but it's not like I woke up next to them and they said "oh hey that was a 'cool' conversation".
So that way it could either be in my mind or it could actually be talking to them.

Also there's the fact that it's very hard to verify , even If were talking to someone in their dream and they remember it , they could pretty much chalk it up to "yeah but that was only a dream it wasn't real".

But while downloading the dream , I can see the dreamer and the dream-scape they have made - very clearly.