user: Question: What was the game date when the opponent was Houston?
Columns: ['Game', 'Date', 'Opponent', 'Score', 'High points', 'High rebounds', 'High assists', 'Location/Attendance', 'Record']
Types: ['real', 'text', 'text', 'text', 'text', 'text', 'text', 'text', 'text']
Sample row: [1.0, 'May 17', 'Houston', '85-66', 'Smith (21)', 'Ford (11)', 'Ford (4)', 'Palace of Auburn Hills 13,824', '1-0']
SQL:

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