user: Question: What date was the game when away team Northampton Town played?
Columns: ['Tie no', 'Home team', 'Score', 'Away team', 'Date']
Types: ['text', 'text', 'text', 'text', 'text']
Sample row: ['1', 'Chesterfield', '3–4', 'Bolton Wanderers', '11/12/1990']
SQL:

assistant: SELECT "Date" FROM "Table" WHERE "Away team" = 'Northampton Town';