generate response: Okay, thanks. Now could you also help me find a cheap persian restaurant in the centre?. Intent: find_train. Slots: restaurant-area=centre, restaurant-food=persian, restaurant-pricerange=cheap, train-arriveby=19:30, train-day=tuesday, train-departure=cambridge, train-destination=bishops stortford, train-leaveat=17:29
Response: There are no such options available. Shall we try a different food type perhaps?