user: Question: When was the game before week 15 with the result of Bye?
Columns: ['Week', 'Date', 'Opponent', 'Result', 'Attendance']
Types: ['real', 'text', 'text', 'text', 'text']
Sample row: [1.0, 'September 12, 1999', 'Dallas Cowboys', 'L 35-41', '79,237']
SQL:

assistant: SELECT "Date" FROM "Table" WHERE "Week" < 15.0 AND "Result" = 'Bye';