Customers flirting with you at work..?

I agree with you. Work should be about work and not cute patrons asking you out. Of course, it is a little flattering but all these guys are just there to stay for a couple of nights and they are not looking for anything serious. So it is certainly way better to keep is professional and not to drool over a guy who you might never see again. It saves your job and saves you from heartbreak as well. So I guess it is the best approach. Don't listen what others say. You have a good head on your shoulders and keep it that way.