VBA to highlight duplicates in combinations of 2 ranges

[Netvice]

I would appreciate your help in the following issue: 3 columns with dates, 6 columns with names. Any name can be in any column J-O, any date can be in any column G-i. Even on different rows.

One name cannot be assigned a date >= 2 times (the guy can't be auditing in 2 places at the same time).
When this happens, I need highlighted the duplicate date and name.

I have included 2 images ("Registru", where I need to input the VBA code and "Registru2", where I exemplified finding the duplicates using 18 additional columns concatenating date + name).

Thank you very much,

Img2.jpg
Img3.jpg

[skywriter]

You need to upload an actual workbook otherwise you cause someone to have to recreate your sheets and no one wants to do that.
See the yellow area near the top of the page for instructions.

[Netvice]

Done, thank you.