Find the email and phone number of the customers who have never filed a complaint before.
SELECT email_address ,  phone_number FROM customers WHERE customer_id NOT IN (SELECT customer_id FROM complaints)
SELECT email_address ,  phone_number FROM customers WHERE customer_id NOT IN (SELECT customer_id FROM complaints)
[{'email_address': 'paige.hyatt@example.com', 'phone_number': '1-369-302-7623x576'}]