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 the Ashley Hotel? It is on the north side of town, has 2 stars, free wifi and parking, and is moderately priced. Sentence2: Is that a 2 star hotel? Sentence3: Are there any available for less than $200 a night? Sentence4: Unfortunately, the rooms are unavailable for that day and time. Can I try a shorter stay for you or possibly a different day? Sentence5: Of course! The reference number is QZYSOMAW and the address is 74 chesterton road. May I help with anything else? Sentence6: No, it has 4 stars Sentence7: Can you make a reservation for 6 people for 3 nights starting on Wednesday. Sentence8: Yes, I was able to successfully book you for two nights. Is there anything else you need? Sentence9: The only 2 star hotels are in the north or the east. Do you mind staying in one of those areas? Sentence10: Nope, that's all I need. Thanks for your help! Sentence11: Can I have the reference number and address please? Sentence12: How about for 2 nights? Sentence13: We're glad to be of service, and please do not hesitate to contact us if you need more help while you're in Cambridge! Sentence14: Yes that would be fine with me Sentence15: There are several. Alexander Bed and Breakfast is cheap and is in the Centre. Would you like me to book that? Sentence16: Let's try a hotel type with free parking in the centre of town with a star of 2. Sentence17: Are there any rooms available in hotels with free parking? Sentence18: how about for 2 nights? Sentence19: Yes. Do you have a preference for the hotel's area or price range? Sentence20: I'm sorry. I have no 2 star hotels in the center of town. However, I have some in other parts of town. Would you care to modify your search criteria? Question: Who has spoken the sentence 10? (A) User (B) System
[EX A]: Answer: (A) User

[EX Q]: Sentence1: I am not looking for British, I am looking for scottish food. Sentence2: I am looking for something in centre of town then Sentence3: I'm sorry but there are no moderately priced Scottish restaurants in town. Would you like a different type of food? Sentence4: I've booked your reservation. Is there anything else you need? Sentence5: Yes I have many moderately priced venues in the center of town serving British food if you like. Sentence6: I am looking for a moderately priced Scottish restaurant Sentence7: I'm so sorry but it seems that I don't show any that will suit what you are looking for. Would you like to try a different price range or type? Sentence8: There is la tasca. They are located at 14 -16 Bridge Street. Would you like to book it? Sentence9: Can I have a reference number please? Sentence10: Thank you too, good bye. Sentence11: Thank you. Have a lovely day. Sentence12: Yes, it's XXNQ81IE . Sentence13: Yes, Could you look for a Spanish restaurant instead? Sentence14: Yes please. Could you give me a table for tuesday at 12:00 for 2 people please. Question: Who has spoken the sentence 12? (A) User (B) System
[EX A]: Answer: (A) User

[EX Q]: Sentence1: I would like to travel on Wednesday by train departing from Kings Lynn to Cambridge. But want to arrive by 11:45. Sentence2: Can you tell me if Ashley Hotel is located in the South and does it include free parking? Sentence3: That's it for today, thank you Sentence4: Yes, there are several. What day would you like to travel? Sentence5: Hi, do you know about trains that run from King's Lynn? Sentence6: I do not have anything with that exact criteria. Shall I change it? Sentence7: The address for The Cambridge Belfry is Back Lane, Cambourne. Can I help with anything else today? Sentence8: for how many ? Sentence9: They are located in the North and has free parking. Sentence10: I would prefer the cheaper one please. Sentence11: just one, please Sentence12: I have two hotels that meet your criteria. One is in the expensive price range and the other is in the cheap range. Do you have a preference? Sentence13: Okay, great. I've made you a booking on the TR8044. Your reference number is VIG3VTPJ . The total fee is 9.8 GBP which can be paid at the station. Sentence14: Yes, Can you look in the west please? Sentence15: how about ashley hotel? Sentence16: Okay, I need the address of a hotel in the south please with free wifi and parking. Sentence17: Thanks! I also need a hotel (not a guesthouse!) with free wifi, please. Sentence18: Thanks for using our services, goodbye! Question: Who has spoken the sentence 10? (A) User (B) System
[EX A]:
Answer: (A) User