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: The hotel should be in the moderate price range and should include free wifi. Sentence2: Booking was successful. Reference number is : WJFFGVWD . Is there anything else I can help you with? Sentence3: I've found several hotels in the moderate price range. Is there a specific area of town you're looking to stay in? Sentence4: How about the Acorn Guesthouse? Free wifi and moderate price range. Sentence5: Sure, book me for 2 people for 5 nights starting on Monday? Sentence6: That will be all. good bye. Sentence7: Yes, I'm looking to stay in the north. Sentence8: I am actually looking for a hotel. Is the Acorn Guesthouse listed in that type? Sentence9: No, it is not. How about Ashley hotel? Sentence10: I'm looking for lodgings that are moderately priced. Sentence11: Good bye, enjoy your stay. Sentence12: I've found 11 possibilities for you. Would you prefer a guest house or a traditional hotel? Question: Who has spoken the sentence 4? (A) User (B) System

Answer: Answer: (A) User

Question: Sentence1: I'd like to find some place to go on the east side of town. Sentence2: Thank you. Have a good day, goodbye. Sentence3: I can certainly suggest something for you. I have 10 options. Do you prefer an entertainment venue, or perhaps a museum or park, etc? Sentence4: Sounds great. That's all I needed. Thank you! Sentence5: I would prefer just anything in the east, can you give me the address and attraction type of one? Sentence6: No problem. How does the Funky Fun House sound? It is standard entertainment and it is located at 8 mercers row, mercers row industrial estate. Question: Who has spoken the sentence 2? (A) User (B) System

Answer: Answer: (A) User

Question: Sentence1: Yes how many nights will you be staying and when will you be arriving? Sentence2: What day and time would you like to travel? Sentence3: I'm looking for a train departing from cambridge going to birmingham new street. Sentence4: Yes please book me a reservations for 3 people at Rosa's Bed and Breakfast and find me the cheapest rate. Sentence5: What day does your stay begin? Sentence6: Thank you! Yes, what is the star of the hotel please? Sentence7: This is a four star hotel. Sentence8: Would you like me to book it for you? Sentence9: I will be there for 3 nights. Sentence10: Please let us know if there is any way we can assist you in the future. Have a wonderful trip. Goodbye. Sentence11: OK, your booking was successful. The reference number is UNV1RXY7 . Can we help you with anything else? Sentence12: For three people please. And can you give me the reference number? Sentence13: Yes please, that would be great. Sentence14: thanks a lot, that is enough for today Sentence15: the address is 53 roseford road and the phone number is 01223512596 Sentence16: TR8873 leaves at 22:01 and arrives at 24:44. Would you like me to book? Sentence17: I would like it for wednesday Sentence18: get me the address of the hotel and phone number Sentence19: I have one called Rosa's Bed and Breakfast which is actually a guesthouse. Would you like to book that? Sentence20: Your total is 225.3 GBP payable at the station. Your reference number is 5AXU412R . Can I help with something else? Sentence21: I would like to book a cheap hotel in the south area. Sentence22: Wednesday leaving after 21:00 please. Question: Who has spoken the sentence 7? (A) User (B) System

Answer:
Answer: (B) System