user: Question: When did the course Vasto to Campitello Matese took place?
Columns: ['Date', 'Course', 'Distance', 'Type', 'Winner']
Types: ['text', 'text', 'text', 'text', 'text']
Sample row: ['12 May', 'Brescia', 'km (mi)', 'Individual time trial', 'Stage Cancelled']
SQL:

assistant: SELECT "Date" FROM "Table" WHERE "Course" = 'Vasto to Campitello Matese';