I bought this this afternoon. All I was told it was an Oncidium. I tried getting the tag out and it broke off , in the plant I think. All I can read is: P237-A Mtssa.Charlie and on the next line under that: Fitch 'IzumI'.
Well, there is a Miltassia Charles M. Fitch 'Izumi', which is Brassia verrucosa x Miltonia spectabilis according to the infinite wisdom of the Internet. Not an Oncidium but fairly close. However, if you want to be sure, you can always take a pair of tweezers and carefully pull the rest of the broken tag out of the container.