Rails Best practice Controller or Model

I'm trying to refactor my code according Rails Best Practice. Now I'm face with a problem where I have to instance variable at controller and I can't move them to model. Here we are:

feedbacks_controller.rb

def get_feedback
  ...
  @employee = Employee.find_by(:name)
  if @employee.blank?
     ...
  else
    @client_feedback = Feedback.new(:screen_name => @screen_name, :feedback => @feedback)
    @client_feedback.employee_id = @employee.id
    @client_feedback.client_id   = @employee.client_id
    @client_feedback.location_id = @employee.location_id
    @client_feedback.save

According to Rails Best practice Move Model Logic into the Model all assignments inside the else need move on to model, my doubt is how I will start the @employee instance variable inside of model?