Formula to put a cell highlighed

Hello all,

I would like to create a report for work sheet1, in this report i would like to highlight all the clean containers, to know if those containers are clean we have to check the bookings, i would in fact like to write on sheet3 my list of clean bookings, that Excel pick the similar booking on sheet2!U:U with the assigned container/s and that it goes and finds the same container numbers on my report sheet1 and highlight them.

It's pretty hard to explain like this but i hope you understood what i meant and that you are goint to be able to help me.

Thank you heaps in advance.
Fabien