Check values of two cells and x if true?

GM all... I have a tricky one that I just can't seem to figure out... Basically I have column A, B, and C. A has the word "HOLD" if there's a problem with my task. B has a yes or a no or a date. If we have the parts, then a "y", if we have an eta on the parts then a date, if we have no eta than an "N". I want column A to get an "x" if I need to follow up, so if A has a "hold" OR if B is a "n," then I want a check indicating that I need to follow up on the task.

I thought this: =IF(B2="n" or a2="hold", "x", "")

But I get an error when trying to submit. Does anyone know how to make my formula work?

Thank you so much!!

Mika