user: Question: WHEN has a Opponent of Miami Dolphins?
Columns: ['Week', 'Date', 'Opponent', 'Result', 'Stadium', 'Record', 'Attendance']
Types: ['real', 'text', 'text', 'text', 'text', 'text', 'real']
Sample row: [1.0, 'July 29', 'Carolina Panthers', 'L 20–14', 'Fawcett Stadium', '0–1', 24625.0]
SQL:

assistant: SELECT "Date" FROM "Table" WHERE "Opponent" = 'Miami Dolphins';