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_66 ( name VARCHAR, president VARCHAR, left_office VARCHAR )

### Question ###
What is Name, when President is Khamtai Siphandon, and when Left Office is 1999?

### Accurate SQL ###

SELECT name FROM table_name_66 WHERE president = "khamtai siphandon" AND left_office = "1999"