user: Question: When was Avishka Gunawardene born?
Columns: ['Player', 'Date of Birth', 'Batting Style', 'Bowling Style', 'First Class Team']
Types: ['text', 'text', 'text', 'text', 'text']
Sample row: ['Arjuna Ranatunga (captain)', '1 December 1963', 'Left hand bat', 'Right arm medium', 'Sinhalese SC']
SQL:

assistant: SELECT "Date of Birth" FROM "Table" WHERE "Player" = 'Avishka Gunawardene';