This is taken from the Companion Guide:
HOW DO I GET RENÉE TO TEACH ME HOW TO GIVE A MASSAGE? Once Amy laments that she could really use a massage, you can go to the spa when Renée is working there. At this time, only Renée can teach you how to give a massage. Renée will schedule a session for 20:00 the next day to teach you how to give a massage. This appointment can't be rescheduled so make sure there are no other conflicts. Renée is a thourough teacher and/or you are a slow learner, as it takes two sessions for you to learn how to properly give a massage. Once you finish the training, you can meet Amy in her room to give her a massage.
Got it to finally work this time