那就从这些车次中选择一趟吧。
一个方向预约不超过三趟可选车次。[{'character': '一', 'pinyin': 'i2', 'highest pitch': 10.19, 'lowest pitch': 8.25, 'duration': 0.12, 'prosody hierarchy': 'null'}, {'character': '个', 'pinyin': 'ge5', 'highest pitch': 11.49, 'lowest pitch': 9.99, 'duration': 0.14, 'prosody hierarchy': '#1'}, {'character': '方', 'pinyin': 'fang1', 'highest pitch': 10.37, 'lowest pitch': 9.47, 'duration': 0.2, 'prosody hierarchy': 'null'}, {'character': '向', 'pinyin': 'xiang4', 'highest pitch': 10.05, 'lowest pitch': 8.16, 'duration': 0.23, 'prosody hierarchy': '#1'}, {'character': '预', 'pinyin': 'v4', 'highest pitch': 8.75, 'lowest pitch': 7.3, 'duration': 0.19, 'prosody hierarchy': 'null'}, {'character': '约', 'pinyin': 've1', 'highest pitch': 8.75, 'lowest pitch': 7.32, 'duration': 0.25, 'prosody hierarchy': '#3'}, {'pinyin': 'sp1', 'highest pitch': 0.0, 'lowest pitch': 0.0, 'duration': 0.05}, {'character': '不', 'pinyin': 'bu4', 'highest pitch': 8.89, 'lowest pitch': 6.99, 'duration': 0.16, 'prosody hierarchy': 'null'}, {'character': '超', 'pinyin': 'chao1', 'highest pitch': 8.85, 'lowest pitch': 6.99, 'duration': 0.25, 'prosody hierarchy': 'null'}, {'character': '过', 'pinyin': 'guo4', 'highest pitch': 8.3, 'lowest pitch': 6.87, 'duration': 0.22, 'prosody hierarchy': '#2'}, {'character': '三', 'pinyin': 'san1', 'highest pitch': 10.5, 'lowest pitch': 9.94, 'duration': 0.25, 'prosody hierarchy': 'null'}, {'character': '趟', 'pinyin': 'tang4', 'highest pitch': 10.5, 'lowest pitch': 7.39, 'duration': 0.24, 'prosody hierarchy': '#2'}, {'character': '可', 'pinyin': 'ke2', 'highest pitch': 14.24, 'lowest pitch': 7.33, 'duration': 0.19, 'prosody hierarchy': 'null'}, {'character': '选', 'pinyin': 'xvan3', 'highest pitch': 8.27, 'lowest pitch': 5.16, 'duration': 0.19, 'prosody hierarchy': '#1'}, {'character': '车', 'pinyin': 'che1', 'highest pitch': 7.66, 'lowest pitch': 7.41, 'duration': 0.2, 'prosody hierarchy': 'null'}, {'character': '次', 'pinyin': 'cii4', 'highest pitch': 13.02, 'lowest pitch': 6.8, 'duration': 0.28, 'prosody hierarchy': '#4'}]