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

[Q]: Sentence1: Nothing in particular. Any recommendations? Sentence2: Yes, please coming in on monday for 5 nights for 3 people. Sentence3: We have amazing various of attractions in the centre area! What type of attraction are you looking for? Sentence4: I booked it for you. Your reference number is as follows: 5MM5C3UC . Is there anything else I can assist you with today? Sentence5: Any area is fine are there any with a 3 star rating? I don't need free parking or internet. Sentence6: Let me suggest the Museum of Archaeology and Anthropology. Their admission is free and the phone number is 01223333516. Sentence7: Would you like me to book it for you? Sentence8: Happy to help! Have a good trip! Sentence9: I have many moderate priced hotels available. What part of town would you prefer? Sentence10: alpha-milton guest house is in the north. Would you like me to book you a room? Sentence11: Can you book it for me and get a reference number ? Sentence12: i need a good place to go in the centre Sentence13: That will be all, thanks! Sentence14: I also need a moderate priced place to stay. Question: Who has spoken the sentence 7? (A) User (B) System
[A]: Answer: (B) System

[Q]: Sentence1: Thank you for confirming that. One more detail: Did you have a particular time period in mind for your trip? Sentence2: I would like to travel on a Saturday. Sentence3: Yes. I want to arrive in Cambridge by 21:30. Sentence4: The Ruskin Gallery is a museum. Do you need anything else? Sentence5: There are numerous places in the Centre, can you tell me what type if place or activity you would like to do and maybe we can narrow it down? Sentence6: The Cambridge University Botanic Gardens are 4 pounds, and the Regency and Ruskin Galleries are free. Sentence7: The address for the regency gallery is 39 fitzroy street and the phone number is 01223365454. For ruskin gallery it's anglia ruskin university, east road, their number is 01245493131. Sentence8: I am looking for a train leaving broxbourne. Sentence9: The centre, please. Sentence10: I should have confirmed that I am indeed going to Cambridge. Sentence11: I need a place to go in town. Sentence12: I'm afraid we don't have a zoo, although if you like plants there is the Cambridge University Botanic Gardens. There are several galleries, such as Regency Gallery and Ruskin Gallery. Sentence13: You are welcome. Have a nice day. Goodbye. Sentence14: That will be all, thank you for your help. Sentence15: No I don't need to book a seat, but can you tell me the departure time. Sentence16: Please, I need the address and phone number for the Regency and Ruskin Galleries. Thanks. Sentence17: TR7846 will get you into Cambridge by 10:32. Would you like me to book a seat on that for you? Sentence18: I can help with that! Your destination will be cambridge I presume, what day would you like to travel? Sentence19: Yes I want to travel on a Saturday. Sentence20: Of course. The departure time for that train is 09:32 with an arrival time of 10:32. It's a 60 minute ride. Anything else I can help with? Sentence21: How about a zoo or art gallery? Sentence22: Where is your destination located? Sentence23: Are there entrance fees to these places? Sentence24: One more thing. Would you confirm the attraction type for the regency gallery and ruskin gallery? Sentence25: There are hourly trains from 5:32 onward. Did you have a particular time of day in mind? Sentence26: Did you have a specific place or area in mind? Question: Who has spoken the sentence 13? (A) User (B) System
[A]: Answer: (B) System

[Q]: Sentence1: Churchill college is a college in the west. The phone number is 01223336233. The postcode is cb30ds. Can I help with anything else? Sentence2: Well what about helping me find something to visit in Cambridge? What is there to do on the west side? Sentence3: Yes. The guesthouse must include free parking and free wifi. Sentence4: You could always visit Churchill College. Sentence5: Oh dear. Can you try one more time? Moderate guest house, free wifi and parking, for 1 night, Friday, 4 people? I really need this room. Sentence6: Do you have any hotels with free wi-fi and parking in the moderate price range? Sentence7: I'm sorry, I have tried the Hobsons House and The acorn guest house for 3 nights. Could you possibly book a different day to check in? Sentence8: Could you help me find a moderately priced guesthouse? Sentence9: I'm sorry but the booking was unsuccessful. Would you like to book another day or for a shorter stay? Sentence10: You're welcome, please enjoy your visit to Cambridge. Sentence11: Lovell lodge does not have availability on Friday either. Would you like to try another guesthouse? Does the area matter? We could try kirkwood house, it is in the north. Sentence12: I'm sorry, but it's not available. Sentence13: Could you tell me if it is available for one night? Sentence14: I am sorry but the Carolina Bed and Breakfast is not available for one night either, may I check another guesthouse for you? Sentence15: I apologize for the trouble earlier. I managed to find you a guesthouse called The Hamilton Lodge and made a successful reservation. The reference number is EL0WI0ZV . Sentence16: Yes it will. Please book it for 4 people staying 3 night starting on Friday. Sentence17: I found 15 do you have any other requirements to help narrow it down? Sentence18: Sorry, I tried all 12 of the avaialble places with those requirements and there is no availability. Sentence19: Are there any other hotels available? Sentence20: That would be fine with me Sentence21: Yes. i have the Ashley North and the Lovell Lodge. Do you have a preference? Sentence22: Carolina bed and breakfast has free parking and internet. It is located in the east with a moderate price range. Will this suit your needs? Sentence23: Oh, thank goodness. I was getting worried. Can you recommend any fun things to do in the west side of town? Sentence24: No, that's all I need today. You have been very helpful. Thanks! Sentence25: Yes, please find another moderate guesthouse with free parking and wifi to book. Sentence26: Okay, what kind of attraction is that? May I have their postcode and phone number please? Sentence27: How about we try the Lovell Lodge, if that's okay? Sentence28: Hmmm ... let's try booking the Acorn Guesthouse for 1 night? 4 people, arriving Friday. Question: Who has spoken the sentence 25? (A) User (B) System
[A]:
Answer: (B) System