The College Store HWS

I went into the store to buy a book I needed for a class and the lady downstairs welcomed me and asked me if I needed anything and I said no thank you because I knew exactly where to look. I was in the particular aisle for around 2-3 minutes looking for the author and title, because I was confused by the title that the teacher requested us to buy. The lady walked by a couple times looking at me, then comes back to me and asks if I needed help and I said no and she proceeds to tell me "I can't read the book and do my homework in the college store and that I needed to buy it" I politely responded that I was just confused about what book I needed to buy. Anyway my business will be taken to elsewhere due to terrible service and hysterically overpriced books.