1999 Nissan Sentra Headlight RH (passenger side) plastic cover needed?

I have a 1999 Nissan Sentra. The passenger side front light has a broken plastic cover. Only the plastic cover is broken and both the head light and park light (blinker) work fine. I can't seem to find only the plastic cover for sale through auto parts dealers. Does anyone have suggestions on where to find the plastic cover.

Thank you.