user: ### NOW ANSWER:
Question: What is the name of the ship sunk by U-305 on 17 March 1943?
Columns: ['Date', 'Name', 'Flag', 'Tonnage (GRT)', 'Sunk by']
Types: ['text', 'text', 'text', 'real', 'text']
Sample row: ['16/17 March 1943', 'Kingsbury', 'United Kingdom', 4898.0, 'U-338']
SQL:

assistant: SELECT "Name" FROM "Table" WHERE "Date" = '17 March 1943' AND "Sunk by" = 'U-305';