user: Question: When Nashville was the visiting team what was the lowest Attendance shown?
Columns: ['Date', 'Visitor', 'Score', 'Home', 'Decision', 'Attendance', 'Record']
Types: ['text', 'text', 'text', 'text', 'text', 'real', 'text']
Sample row: ['January 2', 'Phoenix', '5 – 2', 'Colorado', 'Budaj', 15232.0, '21–16–3']
SQL:

assistant: SELECT MIN("Attendance") FROM "Table" WHERE "Visitor" = 'Nashville';