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

Q: Sentence1: Hi, I'm looking for a 1 star place to stay with free wifi. Sentence2: Well, I'd like to book one. I don't think it matters which one. Sentence3: You are welcome, goodbye. Sentence4: There are 5 guesthouses with 4 star ratings in Cambridge with moderate to cheap price ranges. Would you like more information? Sentence5: Alright. I wanted a 1 star, but I guess I can listen to the 2 star options. Sentence6: Okay, how many people will be in your party? Sentence7: Hmm. What do you what about 4 star hotels? Sentence8: No, that is all. Thank you. Bye. Sentence9: What dates would you like to book the room for? Sentence10: I have 2 on the north side that are in the moderate price range and 1 on the east side in the expensive range. Would you like to book one. Sentence11: I need it for two nights starting on Saturday. Sentence12: It would be for 7 people. Sentence13: I'm sorry there are no 1 star hotels with internet, would you like me to search on 2 stars, we have a few hotels available. Sentence14: I have booked you at the A and B Guest House at 124 tenison road. The reference number is 0J08KUGQ . Can I help you with anything else? Question: Who has spoken the sentence 7? (A) User (B) System

A: Answer: (B) System
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Q: Sentence1: Great. Can you let me know the address and entrance fee? Sentence2: Is there a certain cuisine you are interested in eating? Sentence3: You are welcome. Thank you for using Cambridge TownInfo centre to plan your visit. Goodbye. Sentence4: There is not an expensive Austrian restaurant in the area. Is there another cuisine you'd like to try? Sentence5: How about cheap price range ? Sentence6: No, there are no places that serve Austrian food, anywhere. Sentence7: Thank you. That was all I needed today. Goodbye. Sentence8: Yes, I was hoping for Austrian food. Sentence9: Hello, I am interested in seeing the attractions on the west side of town. Can you assist me? Sentence10: No indian makes me get the runs. How about pizza? Sentence11: I'm afraid there aren't any Austrian restaurants in town at all, regardless of price. Is there anything else that could be acceptable? Sentence12: On the west side please Sentence13: Yes, Im looking for a nice high end expensive place to dine at in the same area. Sentence14: Clare hall is a college in the west part of town. Sentence15: Well, don't say I didn't warn you. We have 14 expensive Indian places in Cambridge, what side of town are you looking for? Sentence16: There are a few available but I suggest the Rice Boat. Would you like for me to book a table? Sentence17: The rice boat is located at 37 Newnham Road Newnham. Sentence18: The address is herschel road and it is free. Can I help you with anything else? Sentence19: do they serve austrian food? Sentence20: No, can you just give me the address, please? Sentence21: That's more information than I needed to know. I'm sure your supervisors wouldn't approve. I was looking for expensive indian food, please. Sentence22: What about an expensive Indian restaurant, then? Sentence23: How about an expensive indian restaurant in the west? Sentence24: there are 5 places in the west. if you want a suggestion, my friends always go to tandoori palace. Question: Who has spoken the sentence 8? (A) User (B) System

A: Answer: (A) User
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Q: Sentence1: Could you check the spelling(city centre north b and b) and try to search again? Sentence2: The TR2512 takes 51 minutes. Anything else you need? Sentence3: I will be traveling on Thursday. Sentence4: It is a cheap, 0 star guesthouse located at 328a histon road on the north side. It has free internet and parking. Phone number and postcode are 01223312843 and cb43ht. Sentence5: Yes I am looking for information on a hotel called City Center North B and B. Sentence6: Sure! give me the following information: Day of visit, number of people and number of days that you will be staying. Sentence7: I cannot find that hotel. Any other hotels you would like to find? Sentence8: You're all set. Your reference number is HOSVDEGA . Can I help you with anything else today? Sentence9: Do you have a time preference? Sentence10: Well that will not work. Sentence11: I need to arrive by 14:15. Sentence12: there are many trains but you need to tell us which day you want to travel Sentence13: I am also looking for a train into Cambridge from London Kings Cross. Sentence14: Please book for 2 people starting on thursday for 4 nights. Sentence15: enjoy your stay in Cambridge! Sentence16: The TR2512 will fit your needs. Would you like to book this train? Sentence17: The first train leaves at 5:17. Sentence18: Thank you. Are you able to book that for me? Sentence19: Not at this time. What is the travel time for that train, please? Sentence20: no that will be all thanks Question: Who has spoken the sentence 19? (A) User (B) System

A:
Answer: (B) System
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