You can do this fairly easily with index/match;

INDEX(Sheet1!A1:A10,MATCH(1,((Sheet1!B1:B10=idNum) *(Sheet1!C1:C10=formType)))

column A contains the value you want to return from the other sheet,
column B contains the ID numbers, and C contains the form type. of
course you'll change "idNum" and "formType" to whatever cell you have
to to identify that person and form.

For your specific problem, you would replace sheet1! in the formula
with worksheet2! and you would put the formula in worksheet1! with
idNum and formType pointing towards the cells on that row.