user: Question: In 2004, where the womens singles is Daniela Kressig who is the mens singles
Columns: ['Year', 'Mens singles', 'Womens singles', 'Mens doubles', 'Womens doubles', 'Mixed doubles']
Types: ['real', 'text', 'text', 'text', 'text', 'text']
Sample row: [1986.0, 'Armand Jehle', 'Cornelia Marxer', 'Armand Jehle Markus Becker', 'Cornelia Marxer Astrid Wanger', 'Lothar Iser Astrid Wanger']
SQL:

assistant: SELECT "Mens singles" FROM "Table" WHERE "Womens singles" = 'Daniela Kressig';