user: Question: Tell me the nationality of pick of 153
Columns: ['Pick', 'Player', 'Position', 'Nationality', 'NHL team']
Types: ['text', 'text', 'text', 'text', 'text']
Sample row: ['131', 'Mike Gaffney', 'Defence', 'United States', 'Ottawa Senators']
SQL:

assistant: SELECT "Nationality" FROM "Table" WHERE "Pick" = '153';