✅ [Accepted] Solution for MySQL
sql\nSELECT s.name FROM salesperson s\nWHERE s.sales_id NOT IN (\n    SELECT o.sales_id\n    FROM orders o\n    LEFT JOIN company c ON o.com_id = c.com_id\n    
```sql\nSELECT s.name FROM salesperson s\nWHERE s.sales_id NOT IN (\n    SELECT o.sales_id\n    FROM orders o\n    LEFT JOIN company c ON o.com_id = c.com_id\n    WHERE c.name = "Red"\n)\n```
['MySQL']