{"answers": "B", "options": ["m : ok , here are the four tickets you bought for canada at 6:30 in the morning .", "m : ok , you will leave for canada at 6:30 p.m .", "m : although you bought five tickets to canada at 2:30 p.m. , there is no discount .", "m : ok , you 'll leave for canada at 6:30 p.m. , here are your five non discount air tickets ."], "article": "f : excuse me , do you offer air flight reservation service here ? m : yes , is there anything i can do for you ? f : i want to book tickets for canada . how many flights are there each day ? m : 4 , at 6:30 am , 8 am , 2:30 pm and 6:30 pm . f : what 's the airfare ? m : 8000 hong kong dollars including security insurance . f : may i have any discount for 5 persons ? m : yes , 10 % . f : ok , 5 tickets for the 6:30 pm flight .", "id": "train_4129"}