Stressed employee

A gal at the counter next door is so stressed from customers getting mad at her over things she has no control over. I want to tell her get over it, but attempt to comfort her with understanindg. I make people mad at me on daily basis and I certainly never cry about it. Sometimes I have to stop myself from laughing at them. Yeah, I already figured out I'm losing their business because I don't have what they requested. They can bitch elsewhwere. And techinally I owe them nothing if they do not have a reservation. I asked if she has seen the reality show Airplane, some of my customers are like those people. They think just because they are giving us their dollars that they can be as rude as they please and I'm a genie who can make things magically appear. Whatever. They can take their nasty attitudes and cry a river at another counter. Post later. Bye!