Hi guys, there is a train line R3 from France to Spain: https://en.wikipedia.org/wiki/R3_(Rodalies_de_Catalunya)
I would love to use that train to go from Paris with the night train to Latour-de-Carol-Enveitg and from there to Barcelona.
Google finds the R3 train, but neither the interrail.eu nor the RENFE websites finds the train.
https://goo.gl/maps/618FbdJdyV3df1wn6
Do you have an idea where I can reserve a seat?