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

[Q]: Sentence1: Yes I would. Sentence2: The phone number is 01223312112. Do you need the postcode? Sentence3: You're welcome, and you have a nice day as well! Sentence4: Can you tell me anything about cafe jello gallery? Sentence5: I think that could work please make a booking for 6 people Sentence6: There are 10 trains that day. Is there a particular time you'd like to leave or arrive? Sentence7: i would like to arrive after 2:00 in the afternoon. Sentence8: Yes, the Cafe Jello Gallery is a museum located at 13 magdalene street in the west side of town. Would you also like their phone number? Sentence9: Booking was successful! Your reference number is GXIE5O8F . You have to pay 26.4 GBP at the station. Sentence10: No, but I am looking for a train from Ely on Thursday. Sentence11: Thank you very much that is all I needed. Have a good day. Sentence12: We have the TR0813 that arrives at 11:52 on thursday. Does that work? Question: Who has spoken the sentence 3? (A) User (B) System
[A]: Answer: (B) System

[Q]: Sentence1: Can you book a table at the Bistro for me? 4 people at 13:30 on Sunday, please. Sentence2: I am looking for a place to eat that's expensive and serves Belgian food. Sentence3: I just need the arrival time and price. Sentence4: I have two, the backstreet bistro and the slug and lettuce. Do you have a preference between the two? Sentence5: Yes, what time do I need to be at the station? Sentence6: How about somewhere expensive in the centre? Sentence7: Booking was successful. The table will be reserved for 15 minutes. Reference number is : NSLKEI1G . Sentence8: I want to leave after 10:30 on Monday. Sentence9: The TR8089 meets your criteria. Would you like to book tickets? Sentence10: You're welcome, have a good day. Sentence11: no such restraunts too Sentence12: Thanks! I also need a train from Cambridge to Ely, please. Sentence13: what time will you be departing? Sentence14: I should be asking you what time you need to be at the station. Sentence15: The arrival time for train TR8089 is 12:07, and it will cost only 4.40 pounds. Is there anything else I can help with? Sentence16: I'm sorry, we don't have any Belgian restaurants. Would you like to try a different type? Sentence17: That was everything. Thanks very much! Sentence18: How about a gastropub restaurant? Question: Who has spoken the sentence 1? (A) User (B) System
[A]: Answer: (B) System

[Q]: Sentence1: sure thing! We have museums, entertainment and a boat. Anything there catch your fancy? Sentence2: I'm looking for a place to go in the east. Sentence3: Come to think of it, I think I may need a taxi to get me between the two. Can it get me from Cherry Hinton to Anatolia by 17:30? Sentence4: Great, thank you. Sentence5: It was a pleasure to help. Have a wonderful day. Goodbye. Sentence6: You pick something in the east for me. I'll need the address, postcode and entrance fee. I'm also wanting information on Anatolia. Thank you! Sentence7: Okay, let's book a table at the Anatolia for Monday at 17:30. I'll need it booked for 3 people. Sentence8: All done, your reference number is M5W4NO7F . They will hold your table for 15 minutes. Can I help you with anything else? Sentence9: Thank you so much that is everything, I will be putting you on my Christmas Card list, you are awesome! Sentence10: Yes, not a problem. I have a blue lexus booked for you. The contact number is 07234258903. Sentence11: You're very welcome. Now, the Anatolia is a moderately priced turkish restaurant located in the city centre. Sentence12: No that is all I need today. Sentence13: It is always my pleasure. Can I help you with anything else? Sentence14: I actually haven't been to Cambridge before. Can you tell me a few types that might be in that area? Sentence15: Lets start with the attraction information first. Cherry Hinton Water Play is a free park located at cherry hinton hall, cherry hinton road and the postcode is cb18dw. Sentence16: Is there a certain type of attraction you'd like to see? Question: Who has spoken the sentence 4? (A) User (B) System
[A]:
Answer: (A) User