user: Question: What player from the United States played in the Western Collegiate Hockey Association?
Columns: ['Pick #', 'Player', 'Nationality', 'Position', 'League from']
Types: ['real', 'text', 'text', 'text', 'text']
Sample row: [1.0, 'John Tavares', 'Canada', 'C', 'Ontario Hockey League']
SQL:

assistant: SELECT "Player" FROM "Table" WHERE "Nationality" = 'United States' AND "League from" = 'Western Collegiate Hockey Association';