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_name_6 ( class VARCHAR, driver VARCHAR, chassis VARCHAR, rounds VARCHAR )

### Question ###
what is the class when the chassis is dallara f308, rounds is all and the driver is sam abay?

### Accurate SQL ###

SELECT class FROM table_name_6 WHERE chassis = "dallara f308" AND rounds = "all" AND driver = "sam abay"