user: Question: What is the presentation of credentials date of Raúl H. Castro, who has a title of Ambassador Extraordinary and Plenipotentiary?
Columns: ['Representative', 'Title', 'Presentation of Credentials', 'Termination of Mission', 'Appointed by']
Types: ['text', 'text', 'text', 'text', 'text']
Sample row: ['John Appleton', "Chargé d'Affaires", 'January 3, 1849', 'May 4, 1849', 'James K. Polk']
SQL:

assistant: SELECT "Presentation of Credentials" FROM "Table" WHERE "Title" = 'Ambassador Extraordinary and Plenipotentiary' AND "Representative" = 'Raúl H. Castro';