user: Question: What is the conversion number with 0 drops on 02/07/2011?
Columns: ['Player', 'Tries', 'Conv', 'Pens', 'Drop', 'Venue', 'Date']
Types: ['text', 'text', 'text', 'text', 'text', 'text', 'text']
Sample row: ['Pierre Hola', '2', '17', '0', '0', "Nuku'alofa", '22/03/2003']
SQL:

assistant: SELECT "Conv" FROM "Table" WHERE "Drop" = '0' AND "Date" = '02/07/2011';