user: Question: what city has a past season of N/A?
Columns: ['Team', 'City', 'Stadium', 'Manager', 'Past season']
Types: ['text', 'text', 'text', 'text', 'text']
Sample row: ['Aboomoslem', 'Mashhad', 'Samen', 'Parviz Mazloomi', '6th']
SQL:

assistant: SELECT "City" FROM "Table" WHERE "Past season" = 'N/A';