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 Engineer_Visits ( first_name VARCHAR, last_name VARCHAR, engineer_id VARCHAR )
TABLE: CREATE TABLE Maintenance_Engineers ( first_name VARCHAR, last_name VARCHAR, engineer_id VARCHAR )

### Question ###
Which engineers have never visited to maintain the assets? List the engineer first name and last name.

### Accurate SQL ###

SELECT first_name, last_name FROM Maintenance_Engineers WHERE NOT engineer_id IN (SELECT engineer_id FROM Engineer_Visits)