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

[Q]: Sentence1: I'll take whichever one you recommend. I just need the phone number, postcode & address please. Sentence2: TR7786 will leave at 17:00, would that work for you? Sentence3: The travel time is 51 minutes. Can I help you with anything else? Sentence4: What time would you like to depart. I have anything from 5:00 to 23:00 Sentence5: Hello, can you help me find a train going to London Kings Cross? Sentence6: You're very welcome! I hope that you enjoy your time here! Thank you for contacting the Cambridge TownInfo centre. Sentence7: There are 3 restaurants that match what you're looking for, would you like me to book one for you? Sentence8: I would recommend the Ghandi. They are located at 72 Regent Street City Centre and can be reached at 01223353942, can I assist with anything else? Sentence9: I think that's everything I need. Thank you very much. Sentence10: Can I get the travel time for that as well? Sentence11: On Monday, from Cambridge. Sentence12: Yes, I apologize but can you give me the arrival time for train TR7786? Sentence13: Yes, please. Is there a restaurant with Indian food? Sentence14: Sure I can. The arrival time for that train is 17:51. Is there anything else I can do for you? Sentence15: I'd like to leave after 15:45, please. Sentence16: I want a cheap swedish restaurant in the centre, please. Sentence17: Sure! What day are you planning on leaving? Sentence18: I wasn't able to find a cheap swedish restaurant in the centre of time. Would you like me to try a different type of food? Question: Who has spoken the sentence 17? (A) User (B) System
[A]: Answer: (B) System


[Q]: Sentence1: No thank you. I do need help finding places to go in town. I'm looking for entertainment in the centre of town. Sentence2: The Alexander bed and breakfast is located in the centre. The phone number is 01223525725. Sentence3: Okay! Just to clarify, from where will you be departing? Sentence4: the address is 56 saint barnabas road Sentence5: what's their address? Sentence6: There are several available. Do you have a preference on if there is a fee or free? Sentence7: I dont see any entertainment in the center of town. Could I try a different area for you? Sentence8: I'd like to stay in a good part of town. Can you please give me the phone number? Sentence9: Okay, how about 2 stars? It does need to include free parking. Sentence10: Great! I have booked a taxi for you. The car will be a yellow audi, and the contact number is 07663388074. Can I help with anything else? Sentence11: ashley hotel is a nice 2 star hotel. Sentence12: Okay, christ's college is free admission. Sentence13: How about a college instead? Sentence14: There are actually no 1-star accommodations anywhere in Cambridge. Sentence15: It is a guesthouse. Want me to book it? Sentence16: Free would be preferable. I also need a taxi. Sentence17: I need a place to stay in Cambridge. It should be either a hotel or guesthouse with 1 star and moderate price range. Can you help me with that? Sentence18: What hotel type is that? Sentence19: I would also like to book a taxi to and from the hotel that leaves by 13:30. Sentence20: I am so sorry. I don't know where my head has been. I need to leave the hotel by 13:30, going to Christ's College. Sentence21: At 4 stars you have many options. What part of town would you like to stay in? Sentence22: you have been of great help thank you Sentence23: How about a hotel with 4 stars instead? Sentence24: I am glad. thanks you too. Question: Who has spoken the sentence 23? (A) User (B) System
[A]: Answer: (B) System


[Q]: Sentence1: Okay great! Your booking was successful. Your reference number is HMUH9F2T . Sentence2: I would like a place in the centre of town, serves Indian food and on the expensive side. Sentence3: I am also looking for a hotel called the University Arms Hotel. Sentence4: The Curry Garden is an expensive restaurant located at 106 Regent Street City Centre. Their phone number is 01223302330. Would you like me to book a reservation for you? Sentence5: Great, can I also get a taxi as well. Sentence6: I found it. Would you like me to book a room for you? Sentence7: Certainly! Is there any particular place you would like the Taxi to pick you up? Sentence8: Great, thank you for using our system! Sentence9: Not at this time but your help has been appreciated. Sentence10: Yes, I would like to book 5 nights starting Wednesday for 6 people. May I also have the reference number please. Sentence11: Sure thing. Their contact number is 07128800156. Is there anything else I can help you with? Sentence12: OK, we can get you a Blue Honda at 17:00 from the restaurant to the hotel . Sentence13: There are 110 place to dine in Cambridge. May I narrow the search by area, price range, and/or cuisine? Sentence14: You're welcome. Have a great rest of your day! Sentence15: I am looking for a place to dine in Cambridge Sentence16: I will call them, thank you for your help. Sentence17: Great, thanks. Could you give me their contact number? Sentence18: Yes from the restaurant to my hotel. I need to leave the restaurant by 17:00. Question: Who has spoken the sentence 2? (A) User (B) System
[A]:
Answer: (A) User