user: Question: What is date when against is smaller than 6 and location was Durban?
Columns: ['Opposing Team', 'Against', 'Date', 'Venue', 'Status']
Types: ['text', 'real', 'text', 'text', 'text']
Sample row: ['Natal', 0.0, 'May 17,1972', 'Durban', 'Tour match']
SQL:

assistant: SELECT "Date" FROM "Table" WHERE "Against" < 6.0 AND "Venue" = 'Durban';