user: Question: When did Fitzroy play as the away team?
Columns: ['Home team', 'Home team score', 'Away team', 'Away team score', 'Venue', 'Crowd', 'Date']
Types: ['text', 'text', 'text', 'text', 'text', 'real', 'text']
Sample row: ['Richmond', '13.21 (99)', 'South Melbourne', '5.4 (34)', 'Punt Road Oval', 12500.0, '25 July 1964']
SQL:

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