{"answers": "C", "options": ["m : i 'll book the plane ticket soon .", "m : then i 'll go to chicago by this train . train 40 leaves at 8:00 , then i 'll be here at 7:30 .", "m : ok. reserve a seat in train 40 for me . i should take this train to chicago .", "m : bus is convenient , so i 'm taking the bus to chicago ."], "article": "m : i 'd like a ticket to chicago , please . f : for what time ? m : when does the next train leave ? f : train 40 is leaving at 8:30 this evening .", "id": "train_5021"}