Linda: During the summer months, people normally take vacations. Ttherefore, during the summer months, the local economy suffers since local residents spend their money at their vacation destinations. Billy: Why do you think that the local economy would be suffering? During the summer months, tourists who come to our city actually spend lots of money at local businesses, attractions, and restaurants.
Billy's reply argues that Linda's conclusion is correct, but not because of the reasons that Linda claims.