user: Question: On what date did the away team Fremantle play?
Columns: ['Home team', 'Home team score', 'Away team', 'Away team score', 'Ground', 'Crowd', 'Date']
Types: ['text', 'text', 'text', 'text', 'text', 'real', 'text']
Sample row: ['Brisbane Lions', '12.8 (80)', 'Melbourne', '10.11 (71)', 'Bundaberg Rum Stadium', 13814.0, 'Friday, 22 February']
SQL:

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