dialog_acts.slot: destination_airport
dialog_acts.slot: return_date
prompt: I need a round-trip flight.
target: When and where are you going?
references: When and where are you going?
linearized_input: Prompt: "I need a round-trip flight.", Response Type: request, Type of Slot: destination_airport, Response Type: request, Type of Slot: return_date, Agent: Flights_4