user: Question: What was the date of the game when the Canadiens had a record of 31–19–9?
Columns: ['Date', 'Visitor', 'Score', 'Home', 'Decision', 'Attendance', 'Record']
Types: ['text', 'text', 'text', 'text', 'text', 'real', 'text']
Sample row: ['February 2', 'New York Islanders', '1 – 4', 'Montreal', 'Huet', 21273.0, '28–15–9']
SQL:

assistant: SELECT "Date" FROM "Table" WHERE "Record" = '31–19–9';