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

[EX Q]: Sentence1: How about an expensive restaurant that serves British food? Sentence2: Cineworld sounds perfect. What's their postal code? Sentence3: The postal code is cb17dy. Can I get you anything else? Sentence4: There are six expensive British restaurants in Cambridge. Do you have a preferred section of town? Sentence5: Have a good time! Sentence6: It's all new to me. Could you recommend one? Sentence7: Sure thing, we have the cineworld cinema located at Cambridge leisure park, Clifton way. Sentence8: Absolutely, I recommend the Cambridge Chop House at 1 Kings Parade in the centre of town. This is a highly recommended British experience by locals and tourists a-like. Sentence9: No, that'll be all. Thank you for all of your help today. Sentence10: I am sorry but there are no restaurants matching your requests. Would you like me to search for a different food type? Sentence11: Great. Could you also help me find a cinema in the south of town? Sentence12: Hello, I am trying to locate a restaurant that serves northern European food, and I would prefer a more elegant setting. Question: Who has spoken the sentence 3? (A) User (B) System
[EX A]: Answer: (B) System

[EX Q]: Sentence1: I'm sorry, they don't have an opening at 12:00. Would you like to try a different time or day? Sentence2: Hi. I am trying to find some information on a restaurant called India House. Have you heard of it? Sentence3: I was able to book your table on Sunday at 11:00 for 1. The reference number is FRGW4OO2 . Sentence4: I'm so happy we could help you out today. Enjoy your meal in Cambridge! Sentence5: Great can you book a table for one person at 12:00 on sunday? Sentence6: India House serves Indian food in the west of town and is expensive. Their phone number is 0122346166. Can I help with anything else? Sentence7: Thanks. That covers it then! Sentence8: Sure, let's try for 11:00, same day. Question: Who has spoken the sentence 1? (A) User (B) System
[EX A]: Answer: (B) System

[EX Q]: Sentence1: Could you give me the postcode? Sentence2: Their address is 2 norfolk stree. I am not sure of their entrance fee, they do not have it listed. Sentence3: I found quite a few. What kind of food would you like? Sentence4: You are booked! They will hold the table for 15 minutes. Your reference number is IX1RPSY3 . Can I help you with anything else today? Sentence5: I am looking for an expensive restaurant in the centre. Sentence6: The postcode is cb12lf. Is there anything else I can help you with? Sentence7: That sounds perfect! Can you book a table for 5 people @ 13:30 on Saturday? Sentence8: I'd like an expensive gastropub. Sentence9: No thank you, that is everything. Sentence10: I have the backstreet bistro in the centre of town, does that sound good? Sentence11: Can you tell me the postcode on that and the entrance fee? Sentence12: There are great concerts at The Man on the Moon concert hall. Their phone number is 01223474144, if you'd like to check coming attractions. Would that work for you? Sentence13: You're welcome! Just let us know if you need anything else. Sentence14: I would also like to know if there are any shows or concerts in town. Question: Who has spoken the sentence 10? (A) User (B) System
[EX A]:
Answer: (A) User