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 staff (customer_details VARCHAR, staff_details VARCHAR); CREATE TABLE customers (customer_details VARCHAR, staff_details VARCHAR)
  ### Question:
  Find the names of all the customers and staff members.
  ### Answer:
  SELECT customer_details FROM customers UNION SELECT staff_details FROM staff