user: Question: Name the year for open cup Did not qualify and National Final
Columns: ['Year', 'Division', 'League', 'Regular Season', 'Playoffs', 'Open Cup']
Types: ['real', 'real', 'text', 'text', 'text', 'text']
Sample row: [2000.0, 4.0, 'USL PDL', '3rd, Rocky Mountain', 'Did not qualify', 'Did not qualify']
SQL:

assistant: SELECT "Year" FROM "Table" WHERE "Open Cup" = 'Did not qualify' AND "Playoffs" = 'National Final';