You are shown a conversation between a user and system. Identify who has spoken the indicated sentence based on the conversation.
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Question: Sentence1: They are quite expensive . Sentence2: I want a restaurant in the south part of town and serves panasian food. Sentence3: Sorry what type of food do they serve? Sentence4: Thank you, goodbye! Sentence5: Sorry, there are no restaurants in the south part of town serving panasian food. Sentence6: They serve italian food. Sentence7: Frankie and Bennys serves Italian food in the south part of town. The phone number is 01223 412430, and the postcode is C.B 1, 7 D.Y. Sentence8: Thank you for your help. Good bye. Sentence9: italian food please. phone number and postcode please. Sentence10: what is the price range ? Question: Who has spoken the sentence 1? (A) User (B) System

Answer: Answer: (B) System

Question: Sentence1: Booking was successful for Tuesday. Your Reference number is : 0J3V1091 . Sentence2: I'm sorry that doesn't seem to be available would you like me to try a different day or guesthouse? Sentence3: I'm sorry, there does not seem to be a historical site or hiking area in Cambridge. Is there anything else I can help with? Sentence4: Sure, I can help you with that. What section of town were you looking for? Sentence5: Doesn't really matter if they offer either of those or not. I just want it to be a 0 star hotel. Sentence6: Then the city centre north b and b is what you want, shall I book you? Sentence7: i don't really care about the area. Sentence8: I want to see local sights, can you help? Sentence9: I like hiking and seeing historical sites. Sentence10: Okay. Are you interested in hotels that offer internet and/or parking? Sentence11: Yes, I would like to find a hotel in the cheap price range? Sentence12: Yes, a guesthouse is fine. I was looking for zero stars and in the cheap price range. Sentence13: Great, thanks. I don't need anymore help. Goodbye! Sentence14: Yes, please book it for me. Sentence15: I'm sorry, I seem to be having an error in my system. You want a booking at the citycentre north B&B for 6 people, 5 nights, on Monday? Sentence16: I'm also looking for somewhere to go. Perhaps the college. Can you tell me the postcode for the college? Sentence17: City Cenrtree North and B is a cheap hotel,would you like me to book it for you ? Sentence18: Let book the same but on Tuesday instead. Sentence19: I'm happy I could help today. Goodbye! Sentence20: There are 18 colleges in town. I recommend christ's college in the centre. The postcode is cb23bu. Sentence21: Yes, there is a wide variety, do you have an activity type that your are interested in? Sentence22: Yes please, 6 people for 5 nights and we would be arriving Monday. Question: Who has spoken the sentence 21? (A) User (B) System

Answer: Answer: (B) System

Question: Sentence1: There are five nightclubs in the centre. Is there another way I can narrow it down? Sentence2: Yes please. Book it for 6 people on Monday at 15:15. Sentence3: I'm so sorry, but they were unable to accommodate that day and time. Would you like to try for a different time slot or another day? Sentence4: Yes,what is another good time available for Tuesday night? Sentence5: The club salsa is located on 1 station road. The postcode is cb12jb and the entrance fee is 5 pounds. Is there anything else I could help you with? Sentence6: There are a few to choose from. Charlie Chan could be good, it's also in the centre. Would you like me to book you a table? Sentence7: Could I get the contact number for the taxi company as well please? Sentence8: Please recommend one that sounds interesting, and give me the entrance fee, address, and postcode. Sentence9: Alright, I have booked your taxi to go between the two destinations. You will be riding in a Black Toyota. Is there anything else I can do for you? Sentence10: I am looking for a hot nightclub around the centre. Sentence11: I have tried different restaurants and different times for Monday, but there doesn't seem to be availability. Would you like another day or maybe a different food type? Sentence12: No, that's all. Thank you. Sentence13: I am unable to find anything that matches is there something else you would like to eat Sentence14: How about Chinese food? Sentence15: Could you try it for 14:15? Any cheap Chinese place will do, it doesn't have to be in the centre. Sentence16: No problem, I have you booked for 6 people at The Lucky Star on Monday, at 14:15. Your reference number is VU6VN1X4 . Anything more? Sentence17: I would also like to book a taxi to go from the nightclub to the restaurant, arriving by the reservation time. Sentence18: The contact number of the taxi is 07791994031. Anything else I can help with? Sentence19: I'd like to find somewhere to eat, preferably on the cheap side and serving eritrean. Sentence20: You're are very welcome. Have a great day. Question: Who has spoken the sentence 19? (A) User (B) System

Answer:
Answer: (B) System