You are shown a conversation between a user and system. Identify who has spoken the indicated sentence based on the conversation.
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Question: Sentence1: They are all moderately priced, but Avalon has free internet and four stars. Would that suit you? Sentence2: Yes, free wifi. No free parking though. Sentence3: That sounds good. Do they have wifi? Sentence4: Your table has been booked. The reference number is 3FOO64PM . Sentence5: Thank you I am also looking for a restaurant in the same area as the hotel serving expensive chinese food. Sentence6: please contact us again in the future. goodbye. Sentence7: There is Hakka located at Milton Road Chesterton would you like me to reserve it for you? Sentence8: I have three guesthouses to choose from. Do you mind they are in the north? Sentence9: I'm looking for a guesthouse to stay in and I don't need a free parking. Sentence10: 01223315702 and cb12dp. Sentence11: Perfect thats all I needed! Sentence12: This one is in the north a and b guest house Sentence13: Are there any moderately priced 3 star guesthouses in the west available? If not in the west, what about the north? Sentence14: Yes please. I need it for 8 people on Wednesday at 19:15. Sentence15: That's fine. Could I get their postcode and phone number? Sentence16: No that is okay, can you book the cheapest one for me please? Question: Who has spoken the sentence 2? (A) User (B) System

Answer: Answer: (A) User

Question: Sentence1: that is great! thank you for all your help. Sentence2: I need help finding an expensive restaurant in the centre, can you help me please? Sentence3: Thank you for calling and have a great day. Sentence4: I have found the backstreet bistro and the slug and lettuce, which one would you like more information on? Sentence5: Yes both are in the expensive price range Sentence6: I'd love to help. We have 33 expensive restaurants. Do you have a cuisine you'd prefer? Sentence7: Do anything of them serve gastropub food? Sentence8: I want to book a table for 4 people at 16:15 on a Tuesday please. Sentence9: Can I have the munber in your party and the day and time you would like to book? Sentence10: Great! Here is the address, 34 - 35 Green Street. Sentence11: Okay I was able to book you then at The Slug and Lettuce and your reference number is FSOF58OO . Sentence12: Yes, I'm looking for gastropub food. Sentence13: Thank you so much. That is all I need. Sentence14: Any one will be fine. I need the reference number please after its booked. Question: Who has spoken the sentence 2? (A) User (B) System

Answer: Answer: (A) User

Question: Sentence1: Yes, I'm looking for a chinese restaurant in the same part of town as the hotel. What's around? Sentence2: That's great. Thank you so much for all of your help today. Sentence3: Sorry, nothing falls under those categories. Shall I check one WITH free parking? Sentence4: I think that will be all Sentence5: It is a hotel, and it has the postcode of cb21ad. Is there anything else I can help you with today? Sentence6: Yes, give that a try please. I also need free wifi. Sentence7: May I recommend the express by holiday inn cambridge? I'd like to know how many people are staying as well. Sentence8: I have 5 different lovely hotels. How many are we booking for please? Sentence9: Let's go with jinling noodle bar. The address is 11 Peas Hill City Centre, the phone number is 01223566188 and the postcode is cb23pp. Sentence10: Okay. Glad I could be of assistance. Sentence11: There are two expensive hotels centrally located with free WIFI and parking. The University Arms Hotel has a 4 star rating, would you like more information about it? Sentence12: I am looking a hotel to stay in. Could you find me one on the more expensive side? But it doesn't need free parking. Sentence13: I'm not sure yet, but I'll probably only need one room. I forgot to mention, the hotel needs to be located in the centre of town. Sentence14: No, it does not. Please give me the address, phone number, and postcode of any 1 restaurant that matches my criteria. Sentence15: We have many Chinese restaurants in the center of town, ranging from cheap to expensive. Does price range matter? Sentence16: That sounds good. I need to check the number of people before I book. Sentence17: Have a wonderful trip. Sentence18: Yes. I am interested to know the postcode, and if it is a hotel or guesthouse. Question: Who has spoken the sentence 5? (A) User (B) System

Answer:
Answer: (B) System