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

[EX Q]: Sentence1: The postcode is cb41da. Is there anything else I can help you with today? Sentence2: There are 23 museums in town. Do you have a specific area you would be interested in? Sentence3: I need the post code also for the museum please. Sentence4: Acorn guest house looks available, would you like to book that? Sentence5: Their postcode is cb13ef. Is there anything else I can assist you with? Sentence6: Cambridge Artworks is in the east. They have no admission and their number is 01223902168 Sentence7: Yeah, can you have a taxi pick me up at the Acorn and take me to the Artworks, say around 24:45? Sentence8: Yes. I need a guesthouse. I should be a 4 star in the north. Parking is not important. Sentence9: I hope you enjoy your stay. Sentence10: No that's all I needed thank you! Sentence11: Not right now, but could you tell me their postcode? Sentence12: Which ever one is your favorite will do. Can I have their contact information and what is the entrance fee? Sentence13: Booking is complete. Your contact number is 07522217444. The car type will be a red tesla. Can I help you with anything else? Sentence14: I'm looking for museums in town. Can you recommend one? Question: Who has spoken the sentence 8? (A) User (B) System
[EX A]: Answer: (A) User

[EX Q]: Sentence1: I'm also looking for a restaurant in the centre of town that serves chinese food. Sentence2: I need to leave bishops stortford. Do you have a train going out? Sentence3: The Ugly Duckling sounds interesting! What's their address? Sentence4: I'd like to go to Cambridge and would be leaving on Thursday after 16:30. What is available then? Sentence5: Fantastic, have a great day! Sentence6: They are 10.10 pounds each Sentence7: I have 4 choice for you. The Ugly Duckling, Tang Chinese, HK Fusion, and the Sesame Restaurant and Bar. Does one of these sound like something you would like to try? Sentence8: No thank you. That is all. Sentence9: The Ugly Duckling is located at 12 St. Johns Street City Centre. Their postcode is cb21tw. Is there anything more I can help with? Sentence10: There's a train that leaves at 17:29 and arrives by 18:07. Does that sound okay? Sentence11: I am sure I do, where would you like to go? Sentence12: Yes, that would work. What is the price of a ticket? Sentence13: There are several Chinese restaurants in the centre of town. What price rnge are you looking for? Sentence14: I prefer something expensive. Question: Who has spoken the sentence 13? (A) User (B) System
[EX A]: Answer: (B) System

[EX Q]: Sentence1: The postcode is cb12tz and the phone number is 01223304050. Sentence2: Thank you, that is all for today. Goodbye. Sentence3: The Cityroomz hotel is in the moderate price range and in the centre. It also has internet. Would you like me to make a reservation for you? Sentence4: What is available in the centre? Sentence5: There's one restaurant called Cote, but it's expensive. Would this be fine? Sentence6: I need a french restaurant in the same area as well. Sentence7: No just the postcode and phone number will be fine. I need to find a french restaurant in the centre as well. Sentence8: Yes, I am looking for a place to stay. It should be a guest house. Sentence9: Yes and can I get the phone number please. Sentence10: I am not showing any guesthouse in the centre area in your price range. Would you like to try another type of hotel or area? Sentence11: Thank you. There are many guesthouses to choose from. What is your price range and what area would you like? Sentence12: Thank you for contacting Cambridge TownInfo centre. Goodbye! Sentence13: We don't have any guest houses in the centre. How about a hotel? Or an expensive one? Sentence14: The phone number is 01223311053. Sentence15: Lets try a hotel instead. Sentence16: I'm looking in the moderate price range and should be located in the centre. Question: Who has spoken the sentence 3? (A) User (B) System
[EX A]:
Answer: (B) System