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

[Q]: Sentence1: There's a Parkside Police Station in town, right? Sentence2: Thanks! Also, can you give me the exact address to the station? Sentence3: The only address listed is Parkside, Cambridge. It does not give an exact address, I'm sorry to say. Sentence4: I will also need the postcode please. Sentence5: No, that's all thank you Sentence6: Sure, the postcode is CB11JG. Sentence7: Yeah, sorry for the inconvenience. Can I do anything else for you though? Sentence8: Yes, it is located at Parkside, Cambridge. Sentence9: Wow. That is very odd. Sentence10: Thanks. I need the phone number and postcode too. Sentence11: Sure thing. They are located in Parkside, Cambridge and the phone number is 01223358966. Sentence12: You're welcome, have a great day Question: Who has spoken the sentence 9? (A) User (B) System
[A]: Answer: (B) System


[Q]: Sentence1: You are very welcome. Goodbye. Sentence2: I am looking for an expensive restaurant in the east part of town. Sentence3: Is there anything else? Sentence4: What is the phone number for Yu Garden? Sentence5: yu garden is on the east side, would you like the phone number? Sentence6: The phone number for Yu Garden is 01223 248882. May I help you with anything else? Sentence7: No, I think that's it. Thank you for your help. Sentence8: I have found several. Would you like British, Indian, gastropub, or Chinese? Sentence9: There are no other types of expensive restaurants in the east, would you like to try another area? Sentence10: Is there another chinese restaurant in the east? Sentence11: Yu Garden is the only Chinese restaurant on the east side of town in the expensive price range. Sentence12: No, that's okay. What Chinese restaurants are there on the east side? Question: Who has spoken the sentence 11? (A) User (B) System
[A]: Answer: (B) System


[Q]: Sentence1: Goodbye Sentence2: I would like a moderately priced restaurant in the south part of town Sentence3: Thank you goodbye. Sentence4: The address for pizza hut cherry hinton is G4 Cambridge Leisure Park Clifton Way Cherry Hinton and the phone number is 01223 323737 Sentence5: What type of food do each of them serve? Sentence6: Goodbye again. Sentence7: Yes, what is the address and phone number for Pizza Hut Cherry Hinton? Sentence8: I have two restaurants. They are Pizza Hut Cherry Hinton and Restaurant Alimentum. Sentence9: What type of food do they serve? Sentence10: Goodbye. Sentence11: They serve italian food. Can I help you with anything else? Sentence12: Pizza Hut Cherry Hinton is Italian, and Restaurant Alimentum is Modern European. Would you like information on either of them? Question: Who has spoken the sentence 4? (A) User (B) System
[A]:
Answer: (A) User