Hello, I have a question about traveling back to Schiphol on early Monday 16 Dec. If I read correctly the Direct Train will not be running at that time. I will have to goto Platforms 13,14,15?? Will the train that docks at these platforms have markings that will say Amsterdam Sloterdijk. Also, as I "de-train" and look for the bus to Schiphol how far is the walk from the train platform to bus stop that goes to Schiphol. (Is this bus/stop clearly marked?) Thanks so much for the help!!