Why do customers have an incessant need to fill in a supposed awkward silence? Say hi to me, sure, then tell me you’re looking for a certain book title by a certain author (don’t just say a book title without making it a complete sentence of intention) in that order, but if you’re going to give me other info that won’t help in the book search, like why you want it or what it’s about or who the publisher is, then shush.
And don’t get me started on asking for my name or telling me yours! You don’t need mine* and I’m going to forget yours immediately.
*Unless they’re giving the manager positive (or negative) feedback, which almost never happens.