user: Question: What is the date before week 13 and Miami Dolphins as an opponent?
Columns: ['Week', 'Date', 'Opponent', 'Result', 'Record', 'Attendance']
Types: ['real', 'text', 'text', 'text', 'text', 'real']
Sample row: [1.0, 'September 4, 1988', 'New York Jets', 'W 28–3', '1–0', 44027.0]
SQL:

assistant: SELECT "Date" FROM "Table" WHERE "Week" < 13.0 AND "Opponent" = 'Miami Dolphins';