user: Question: Name the high assists for May 21
Columns: ['Game', 'Date', 'Team', 'Score', 'High points', 'High rebounds', 'High assists', 'Location Attendance', 'Series']
Types: ['real', 'text', 'text', 'text', 'text', 'text', 'text', 'text', 'text']
Sample row: [1.0, 'May 19', '@ New Jersey Nets', 'L 97-104', 'P. Pierce , A. Walker (27)', 'T. Battie (11)', 'K. Anderson (6)', 'Continental Airlines Arena', '0-1']
SQL:

assistant: SELECT "High assists" FROM "Table" WHERE "Date" = 'May 21';