NO MANNERS AND NO TRAINING OBVIOUSLY

I had just said bye to my children boarding Mango, so I went to upstairs to Wimpy PE Airport. My table firstly got given to someone else that came in after me. After I ordered my food another waitress seated a black gentleman at my table. I asked him if I could help him? So he asked if I was sitting there, I said yes I have my food already. I told him if he stays sitting he will have to pay for my meal. The excuse was there are no other seats. After he leaves, yet another waitress seats another black gentleman at my table. Am I invisible? Again the excuse there are no other tables open and no open seats. I already had my meal, and I am a white woman dining alone, but how does a waiter/waitress have the audacity to seat a complete stranger of the opposite *** at my table? When I eventually finished my meal I had not seen \my"waitress once since she brought my food to the table. I got up to leave"