Social media lit up in the week since the photo was taken by Facebook user Destiny Carreno last Wednesday at Chicago's Union station location.
The post, which has been shared more than 300,000 times, was posted by Carreno after she made a stop at the busy restaurant during the evening rush hour. What she saw, she said, made her tear up.
"As I waited in line to order, an elderly handicapped gentleman wheeled himself over to the cashier in front of me," she wrote. "The man politely tried to ask the cashier something and it took him a few tries before either of us could understand he was saying 'Help me please.'"
Carreno said it took several attempts before the cashier realized the man needed help cutting and eating his food. Carreno said she thinks the man may have been quadriplegic.
"To be honest, I thought the cashier wasn't going to help," she said, adding that that "Kenny" shut down his register and disappeared. But then she said she was shocked to find Kenny had merely stepped away to put gloves on.
"The cashier came out from the kitchen, sat down, and began cutting the man's meal and helped him eat," Carreno wrote. "At that point, the tears started to gather in my eyes. My heart was so appreciative for what he did. I couldn't contain my emotions in the crowded restaurant."
Carreno said the employee put everything on hold for the man and went above and beyond during a hectic time at the restaurant.