Car is in D driving and won't move? Why ? Engine just revs

What is your question?

Had no other problems with the car called roadside assistance and they could not get the vehicle to move as well. This is a brand new car. Have it for only 4 months with not even 1000 miles on it . The service department at the local dealer was not very helpful and would just like some insight on what this could be. Electrical, transmission? Any input would be appreciated. My car is sitting at the dealer and they said they can't get to it till later this week and I wasn't provided with a loaner or rental so my uber bill is adding up!!! . Is this a common occurrence with this and am I responsible for repairs or is something like this covered under warranty?