You are shown a conversation between a user and system. Identify who has spoken the indicated sentence based on the conversation.

Q: 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

A: Answer: (B) System
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Q: Sentence1: Thanks, can I also have the phone number and postcode? Sentence2: I'm sorry this happened to you, I really hope that the police are able to help. If there is anything else I can do for you don't hesitate to ask. Sentence3: Yes, the postcode is CB11JG and the phone number is 01223358966 Sentence4: I've been robbed and need the police. Sentence5: Great, thank you for your help. I don't need anything further. Sentence6: Okay, the police station is located at Parkside, Cambridge. Question: Who has spoken the sentence 5? (A) User (B) System

A: Answer: (B) System
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Q: Sentence1: I am excited about visiting a particular attraction in Cambridge. Can you help me? Sentence2: Yes, please. What is the postcode? Sentence3: yeah sure why not! that would be dope! Sentence4: No problem. The post code for the fitzwilliam museum is cb21rb. Is there anything else I can help you with? Sentence5: The fitzwilliam museum is located in the centre area of town and is free to enter. Would you like more information? Sentence6: Ok, I can book you a room at the Arbury Lodge Guesthouse. Is that good? Sentence7: No thank you, you been so helpful, have a wonderful day! Sentence8: Thank you for using our system! Sentence9: We have 79 attractions listed at this time. Was there anything in particular you were looking for? Sentence10: Yes. I am looking for a place to stay that has 4 stars and includes free wifi. Sentence11: I am looking for the fitzwilliam museum Sentence12: I have confirmed your booking at arbury lodge guesthouse for 3 nights starting Monday. Your reference number is WAI4ET4D . Would you like help with anything else? Sentence13: Yes please. Book a room for 4 people for 3 nights, beginning Monday. I need a reference number. Sentence14: We have at least 33 four star hotels with internet, would you like one close to the museum? Question: Who has spoken the sentence 6? (A) User (B) System

A:
Answer: (A) User
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