Tan golden retriever mix, red collar

I lost my tan golden retriever mix, Nova, yesterday around 3pm near the Steamtown Mall on Adams Avenue in Scranton. She's a medium-large dog, about 55 pounds, with a bright red nylon collar and a blue name tag that says Nova. She has a white chest patch and a small white star on her right hind leg. She's usually friendly but can be a bit skittish with strangers until she warms up with a treat. I last saw her heading toward the Public Square from the Steamtown Shops area. I really need her back—she's part of the family and has sentimental value. If anyone spots her, please reach out with any info.