Guadec accomodation

Dear interweb, I was gonna share a room with Mathias Hasselmann at the Etap hotel for Guadec. However, I’m gonna stay from 14th to 22nd and he’s gonna leave at the 19th already, which leaves us 3 days with a room that’s half-empty. Do you know people that have a similar problem, so we could get rid of two half-empty rooms? If so, please mail me or contact me on IRC.