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

[Q]: 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
[A]: Answer: (A) User

[Q]: Sentence1: Yes, I am also looking for places to go in town while we are visiting the area. Do you have anything of concert halls around the area? We love those. Sentence2: Yes, please, what is the phone number? Sentence3: I have that all booked for your stay. Your reference number for the room is ZUG88XKL . Is there anything else I can help you with? Sentence4: I am looking for a place to stay. It should be in a moderate price range and should be a star of 3. Sentence5: The phone number is 01223474144. Sentence6: Yes, I need a booking for 8 people for 5 nights starting Monday. Please include the reference number for the booking. Sentence7: Also the address to the man on the moon is 2 Norfolk Street. You have to call to inquire about the entrance fee. Have a Great day. Sentence8: We have one. The Man on The Moon. But it is located in the centre area of town. Would you like more information? Sentence9: Ok, perfect. Thanks! Sentence10: i have four results that match your request, do you need internet? Sentence11: I have the Hobsons House. It is a moderately priced guesthouse located in the west. Free wifi and internet. Can I assist you in booking a room? Sentence12: Internet is not necessary. But can you see if there is one in the west part of town and I would prefer a guesthouse. Question: Who has spoken the sentence 10? (A) User (B) System
[A]: Answer: (A) User

[Q]: Sentence1: Thanks. I will also need take a train from london kings cross station that same day. What time do they leave? Sentence2: Alright, you have been booked at the Michaelhouse Cafe for Monday, 16:15, party of 5. The table will be reserved for 15 minutes. Your reference number is 0W78O9VD . Sentence3: It does not. For European food in the same area and price range, how about the Michaelhouse Cafe? It is located at St. Michael's Church Trinity Street City Centre. Sentence4: Does this restaurant serve european food? Sentence5: I have them leaving from 5:17 in the morning for every two hours until 24:08 in the evening. The journey is approximately 51 minutes. Would you like me to book you on the 11:17 or 13:17? Sentence6: I found you a British restaurant called Midsummer House Restaurant that is located in midsummer common how does that sound? Sentence7: 5 people Sentence8: Yes I will get that taken care of for you. Anything else i can do for you today? Sentence9: I need the train ID, please. Sentence10: I need to arrive by 13:30, so let's book the 11:17, please. Sentence11: I'm looking for a pricy restaurant in the city centre Sentence12: No, I think that's all that I'm looking for, thank for the help! Sentence13: How many people would you like to book it for? Sentence14: Okay. Great. Can you book me a reservation there for 5 people at 16:15 for this Monday? Also I will need a reference number. Sentence15: You are most welcome! Sentence16: The train ID for the 11:17 on Monday to London Kings Cross is TR5720. Is there anything else that I can help you with today? Question: Who has spoken the sentence 7? (A) User (B) System
[A]:
Answer: (B) System