user: Question: When is mr. RYAN's DOB?
Columns: ['Surname', 'First', 'D.O.B.', 'Bats', 'Throws', 'Position']
Types: ['text', 'text', 'text', 'text', 'text', 'text']
Sample row: ['BRASSINGTON', 'Phil', '19 April 1970', 'R', 'R', 'RHP']
SQL:

assistant: SELECT "D.O.B." FROM "Table" WHERE "Surname" = 'RYAN';