user: Question: What is the Date of Catalogue number 602517739468?
Columns: ['Region', 'Date', 'Label', 'Format', 'Catalogue']
Types: ['text', 'text', 'text', 'text', 'text']
Sample row: ['United Kingdom', '31 March 2008', 'Island', 'CD , digital download', '1763307']
SQL:

assistant: SELECT "Date" FROM "Table" WHERE "Catalogue" = '602517739468';