user: Question: When did the North Melbourne team play?
Columns: ['Home team', 'Home team score', 'Away team', 'Away team score', 'Venue', 'Crowd', 'Date']
Types: ['text', 'text', 'text', 'text', 'text', 'real', 'text']
Sample row: ['North Melbourne', '19.14 (128)', 'South Melbourne', '12.19 (91)', 'Arden Street Oval', 14196.0, '28 August 1976']
SQL:

assistant: SELECT "Date" FROM "Table" WHERE "Home team" = 'North Melbourne';