You are shown a conversation between a user and system. Identify who has spoken the indicated sentence based on the conversation.
--------
Question: Sentence1: Great I also need a taxi to take me between the two places and get me to the restaurant by 20:00 Sentence2: You are most welcome. May I help you with anything else, such as attractions? Sentence3: The University Arms is a 4 star hotel on Regent Street. Would you like me to make a reservation there? Sentence4: Booking was successful. Reference number is : VJQM2DFY . Anything else I can do for you? Sentence5: Is that in the centre area also, and in the expensive price range? That is what I'm looking for. Sentence6: In the centre, please Sentence7: Perfect!. Thank you for your help! Sentence8: Great, can you book for 1 person and 4 nights starting Wednesday. Sentence9: Have a great day! Sentence10: Yes, University Arms Hotel is a 4-star hotel in the expensive price range. Would you like to make a reservation? Sentence11: There are 33 expensive restaurants in the centre of town. Is there a specific type of cuisine you were looking for? Sentence12: Sure, which part of town did you want to eat in? Sentence13: Booking for the taxi complete look for a grey bmw car contact number is 07434690950 to arrive at the restaurant by 20:00 Sentence14: You have been booked at the Bedouin on Wednesday at 20:00 for 1 person. Your reference number is 29KJKZOD . Is there anything else I can help you with? Sentence15: I'm visiting the centre and want to go all out on the experience. Can you help me find an expensive restaurant? Sentence16: I need a place to stay. Sentence17: no, just surprise me. I need a reservation for 1 person at 20:00 on wednesday. Sentence18: No thanks, that's all I needed. Question: Who has spoken the sentence 15? (A) User (B) System

Answer: Answer: (B) System

Question: Sentence1: Reference number is 29IN9CT3 for the acorn guesthouse. Sentence2: Sounds great if it is portuguese. I'll take a reservation for 7 people at 20:00 for the same day. Sentence3: Okay, how about the Acorn Guest House in the north? Sentence4: There is. How does Nandos City Centre sound? Sentence5: Okay, it was my pleasure to assist you! Bye! Sentence6: No, that's all I needed today. Thank you for your help! Goodbye! Sentence7: do you have one the is portuguese food ? Sentence8: I'm looking for information on 4-star rated guesthouses in Cambridge Sentence9: You're all set. Your reference number is 6R5W1RRE and your table will be reserved for 15 minutes. Anything else? Sentence10: I suggest the dojo noodle bar, an asian oriental restaurant, would you like to make a reservation? Sentence11: Sure. Can we spend 5 nights starting on Sunday? I am going to need room for 7 people. Sentence12: I have a number of 4 star guesthouses available, would you like to book one in a particular area? Sentence13: I would also like to eat somewhere cheap in the middle of town. Sentence14: Not really. Could you suggest one with free parking? Question: Who has spoken the sentence 7? (A) User (B) System

Answer: Answer: (B) System

Question: Sentence1: Home From Home is a 4 star guesthouse in the north. It has free wifi and free parking. Would you like more information? Sentence2: Definitely! Are you more interested in a pool or a boat? Sentence3: How many nights will you be staying? Sentence4: Yes, I'd like to book a room for 7 on sunday, please. Sentence5: No you have taken care of all my needs thank you so much and have a good day. Sentence6: I need a taxi between the two places. Sentence7: We're looking for some places to go in town. We'd like some information on pools and boating in the centre. Can you help with that? Sentence8: Yes, I keep hearing about this hotel called Home From Home. Can you tell me anything about it? Sentence9: Okay. May I have their telephone number, entrance fee and postcode? Sentence10: You're welcome! Is there anything else I can do to help you? Sentence11: Their phone number is 01223446100, postcode is cb11ly, and there is no entrance fee listed. Can I help with anything else? Sentence12: I booked the taxi. It will be a red ford and their phone number is 07801759620. Sentence13: Thanks. You've been a great help today. Sentence14: It will be for 2 nights. Sentence15: Here is an option in that part of town parkside pools. Sentence16: You're very welcome. It was a pleasure to help you. Good-bye. Sentence17: My kids are wanting to swim. What are the options in that area of town? Sentence18: I have booked the hotel for Sunday for 7 people for 2 nights. Your reference number is SRSOTYZ4 . Is there anything else I can help with? Sentence19: Before I can book you a taxi, what time are you planning on leaving parkside pools to go to home from home? Sentence20: I want to leave by 14:15. Question: Who has spoken the sentence 10? (A) User (B) System

Answer:
Answer: (A) User