Task: Text to Code
Input (English): SQL: SELECT Avg ( T2.price ) FROM Customers AS T1 JOIN Lessons AS T2 ON T1.customer_id = T2.customer_id WHERE T1.first_name = "Janessa" AND T1.last_name = "Sawayn"
Feedback: I want table of staff and make sure that its first and last name should be Janessa Sawayn.
Output (English): SELECT avg(price) FROM Lessons AS T1 JOIN Staff AS T2 ON T1.staff_id = T2.staff_id WHERE T2.first_name = "Janessa" AND T2.last_name = "Sawayn"