Replacing old ceiling fan with chandelier -- old home

Hi, I have recently replaced an old ceiling fan with a chandelier, forgot to take note of the existing electrical configuration, and now can't seem to get the chandelier to turn on. Here's the configuration in the outlet box in the ceiling: -One black, white, and ground (confirmed this is the power source by checking it with the breaker box) -Another black, white, and ground (not sure where this goes) -Black and Red wires (these are connected to an old dimmer switch) -Black, White, and ground (chandelier)