15 people in line with 2 cashiers one cashier had ...

15 people in line with 2 cashiers one cashier had a customer with an issue that took 10 minutes. Other cashier ran out of paper, runs around looking for paper from other machines. I had to speak up and ask if they could get another cashier. Finally someone came guess what, no paper for receipt. 20 minutes to check out? Unacceptable.