John from Timebridge wrote a comment on my post and said that what I was looking for can already be done using Timebridge. And indeed, after some emailing with John we got it to work. The Outlook data is not imported in Timebridge (and I thinks that's wonderful). But when you organize a meeting using the Timbridge Outlook plugin you can see what's already filled in in your Outlook Calendar. Really cool. I'm definitely going to use Timebridge more now.
Thanks for the help John!