Below is the list of tables from the database along with their columns and datatype. Need to generate an accurate SQL query for the question.
Only use the columns present in the respective table. Only use the columns which are required to generate the SQL query. Only use table joins if required and not otherwise.

### Tables ###
TABLE: CREATE TABLE table_2668 ( "Event" text, "Season" text, "Compulsory Dance (CD)" text, "Original Dance (OD)" text, "Free Dance (FD)" text, "Combined Total Score" text )

### Question ###
What was the free dance score in the event where compulsory dance score was 15.99?

### Accurate SQL ###

SELECT "Free Dance (FD)" FROM table_2668 WHERE "Compulsory Dance (CD)" = '15.99'