text: Below is an context that describes a sql query, paired with an question that provides further information. Write an answer that appropriately completes the request.  # noqa: E501
  ### Context:
  CREATE TABLE Engineer_Visits (first_name VARCHAR, last_name VARCHAR, engineer_id VARCHAR); 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.
  ### Answer:
  SELECT first_name, last_name FROM Maintenance_Engineers WHERE NOT engineer_id IN (SELECT engineer_id FROM Engineer_Visits)