Oh, we surely need a Party conversation, not an individual conversation. That's how you'd do it in many DnD games, you know?
You should have one face of the group, but be able to pick others to speak, especially when there's skill checks involved.
Especially in multiplayer it would be great, since that way we can help eachother, and not just "vote" on what the face should say.
As I said, that's allegedly coming. Swen already confirmed it as a work in progress.
If the result will live up to expectations and desires needs to be seen.