user: Question: What season did a United States Center play in?
Columns: ['Season', 'Player', 'Position', 'Nationality', 'Team']
Types: ['text', 'text', 'text', 'text', 'text']
Sample row: ['1995–96', 'Joe Dumars Category:Articles with hCards *', 'Guard', 'United States', 'Detroit Pistons']
SQL:

assistant: SELECT "Season" FROM "Table" WHERE "Nationality" = 'United States' AND "Position" = 'Center';