problem creating formula in google sheets

[san101]

Hi

So Ive integrated a form with Google sheets

sheet 1 has the list of names

sheet 2 has the form responses sample shown below
I

I would like to be able to calculate the difference between today's date and the date in column U of sheet 2


if the name in Column B and C on sheet 2 matches

the name in column b and C on sheet 1


Can anyone help. I keep making a mistake somewhere
heres the formula i tried to use

=IF('sheet 2'!C2="test",TODAY()-'sheet 2'!B2)