user: Question: Who was the visitor when Vancouver was at home?
Columns: ['Date', 'Visitor', 'Score', 'Home', 'Decision', 'Attendance', 'Record']
Types: ['text', 'text', 'text', 'text', 'text', 'real', 'text']
Sample row: ['March 2', 'Los Angeles', '1 – 2', 'Minnesota', 'Backstrom', 18568.0, '37–24–5']
SQL:

assistant: SELECT "Visitor" FROM "Table" WHERE "Home" = 'Vancouver';