Shorter formulas:
[E2]=LET(a,A2:A16,b,B2:B16,f,FILTER(b,a=H1),FILTER(B2:C16,(a=E1)*XLOOKUP(b,f,ISNA(f),TRUE))) [H2]=LET(a,A2:A16,b,B2:B16,f,FILTER(b,a=E1),FILTER(B2:C16,(a=H1)*XLOOKUP(b,f,ISNA(f),TRUE)))