user: Question: What is the date of the Rome to Florence course?
Columns: ['Date', 'Course', 'Distance', 'Winner', 'Race Leader']
Types: ['text', 'text', 'text', 'text', 'text']
Sample row: ['18 May', 'Milan to Udine', 'km (mi)', 'Ernesto Azzini ( ITA )', 'Ernesto Azzini ( ITA )']
SQL:

assistant: SELECT "Date" FROM "Table" WHERE "Course" = 'Rome to Florence';