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Table 2: 
Cross-domain dialog examples in MultiWOZ, Schema, and CrossWOZ. The value of cross-domain constraints(bold) are underlined. Some turns are omitted to save space. Names of hotels are replaced by A,B,C for simplicity. Cross-domain constraints are pre-specified in MultiWOZ and Schema, while determined dynamically in CrossWOZ. In CrossWOZ, the choice in one domain will greatly affect related domains.
MultiWOZCrossWOZ
usr: I’m looking for a college type attraction. usr:  
… Hello, could you recommend an attraction with a rating of 4.5 or higher? 
usr: I would like to visit in town centre pleasesys:  
… Tiananmen, Gui Street, and Beijing Happy Valley are very nice places. 
usr: Can you find an Indian restaurant for me usr:  
that is also in the town centreI like Beijing Happy Valley. What hotels are around this attraction? 
 
Schema sys:  
 
usr: I want a hotel in San Diego and I want to There are many, such as hotel A, hotel B, and hotel C. 
check out on Thursday next week. usr:  
…  
usr: I need a one way flight to go thereGreat! I am planning to find a hotel to stay near the attraction
 Which one has a rating of 4 or higher and offers wake-up call service? 
MultiWOZCrossWOZ
usr: I’m looking for a college type attraction. usr:  
… Hello, could you recommend an attraction with a rating of 4.5 or higher? 
usr: I would like to visit in town centre pleasesys:  
… Tiananmen, Gui Street, and Beijing Happy Valley are very nice places. 
usr: Can you find an Indian restaurant for me usr:  
that is also in the town centreI like Beijing Happy Valley. What hotels are around this attraction? 
 
Schema sys:  
 
usr: I want a hotel in San Diego and I want to There are many, such as hotel A, hotel B, and hotel C. 
check out on Thursday next week. usr:  
…  
usr: I need a one way flight to go thereGreat! I am planning to find a hotel to stay near the attraction
 Which one has a rating of 4 or higher and offers wake-up call service? 
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