response: Oh that's interesting.  They can detect and stop transactions that are fraudulent, like identity theft and counterfeit checks and currency.  They are on the front line!
original_response: That's cool. Bank tellers are most likely to detect and stop fraudulent transactions in order to prevent losses at a bank including counterfeit currency. I'm a manager
history: Hi I am a Bank Teller, I handle people's money by taking in or taking out money from people's bank account! What do you do for your line of work?
knowledge: Being front line staff they are most likely to detect and stop fraudulent transactions in order to prevent losses at a bank (counterfeit currency and checks, identity theft, confidence tricks, etc.).