generate response: I want to depart from broxbourne. Could I get a reference number please?. Intent: find_train. Slots: train-arriveby=08:30, 8:30, train-day=friday, train-departure=broxbourne, train-destination=cambridge
Response: There are two choices, one arrives 6:32 and the second one arrives at 7:32. Which one would you like and how many tickets do you need?