user: Question: What is the name of the City with December 21 as a Date?
Columns: ['Date', 'City', 'Opponent', 'Results¹', 'Type of game']
Types: ['text', 'text', 'text', 'text', 'text']
Sample row: ['June 25', 'Zagreb', 'Norway', '4:1', 'Friendly']
SQL:

assistant: SELECT "City" FROM "Table" WHERE "Date" = 'December 21';