user: Question: On what date did they play in Boston Garden with a record of 22-4?
Columns: ['Game', 'Date', 'Opponent', 'Score', 'Location', 'Record']
Types: ['real', 'text', 'text', 'text', 'text', 'text']
Sample row: [15.0, 'Sat. Dec. 1', '@ Philadelphia 76ers', '110-116', 'The Spectrum', '12-3']
SQL:

assistant: SELECT "Date" FROM "Table" WHERE "Location" = 'Boston Garden' AND "Record" = '22-4';