When Leo and Dana are in the gas station preparing to leave, it sounds like Leo calls Dana "Jess", Dana's mother's name. However, he actually yells "yes" after Dana asks him if his brother Phillip killed himself.
The scene when Jessica reaches out to Carrie to help find Dana who ran away with her boyfriend. Jess shows up at Carrie's and after a brief conversation Carrie agrees to help and says ("I'll go home and see what I can do") But Carrie was home, the scene took place at Carrie's apartment.