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

Input: Consider Input: Sentence1: Sure, what area of town would you like to stay in? Sentence2: There are entertainment attractions in the east, south, and west areas. Which would work best? Sentence3: Any area is fine Sentence4: cherry hinton hall and grounds located in the east is a very nice place to visit. Sentence5: what is your price range to narrow down on our choices Sentence6: lovell lodge has a moderate price range. is that it? Sentence7: Sounds good, I will give it a try, can I also get a place ot stay with free wifi and parking? Sentence8: I am visiting Cambridge and want to see some entertainment. Sentence9: Preferably in the north. Sentence10: There are 2 hotels with 2 stars. There are also 9 guesthouses with 0-, 3- or 4-stars. Which do you prefer? Sentence11: I think I'd choose one of the hotels. Either is fine, could you recommend one? And give me it's price range? Sentence12: Yes that will be all, thank you. Sentence13: I'm open to any price range as long as it meets everything else I need. Sentence14: you are welcome any time Question: Who has spoken the sentence 11? (A) User (B) System

Output: Answer: (B) System


Input: Consider Input: Sentence1: Okay, the TR8944 leaves at 15:39 and arrives by 17:07. Would you like me to book tickets for you? Sentence2: There are 10 trains leaving fro Liverpool Street on Thursday. Did you have a departure time in mind? Sentence3: Okay I have booked you and your reference number is WLUOQKEV . Sentence4: rosa's bed and breakfast is in the cheap price range Sentence5: I'm looking for a train departing from london liverpool street leaving on thursday. Sentence6: Do you need a taxi? Sentence7: Goodbye, and thanks again. Sentence8: Yes, I don't want to leave for Cambridge until 15:00 at the earliest. Sentence9: Sure thing. Thanks for letting us help you today! Sentence10: Thank you. I also need a hotel in the south. Sentence11: then thanks for inquiring with us. Sentence12: I don't need a taxi, thanks for asking Sentence13: No price range but I do want a 4 start. Sentence14: Yes, for 6 people. Sentence15: What price range are you interested in? Sentence16: That sounds great. I'll need a reservation for 6 people for 4 nights on Thursday. Sentence17: I've gone ahead and booked that for you. Your Reference number is : EUZ34KY9 . Is there anything else I can assist you with today? Sentence18: No, that takes care of everything I need. Thanks! Question: Who has spoken the sentence 7? (A) User (B) System

Output: Answer: (B) System


Input: Consider Input: Sentence1: I'm sorry, none of the hotels in the centre are free on those dates. Would you like to try a different number of days? Sentence2: Your booking at the Alexander bed and breakfast was successful, the reference number is L60GOSEU . Sentence3: Just about every lodging in town has internet (it's 2017, after all!). Do you have a certain area or price range in mind? Sentence4: Sure. What time would you like to be picked up from Cambridge Arts Theatre? Sentence5: Thank you Goodbye Sentence6: It needs to be in the same area as theatre and have free parking. I don't care about the price. Sentence7: I don't really care. Can you suggest something? Sentence8: I have booked a black BMW to pick you up. The contact number is 07334398349. Sentence9: That's all for today. Thanks for your help! Sentence10: Can you try for just 2 nights then? Sentence11: I'd actually like to be picked up from Alexander bed and breakfast by 15:30. Sentence12: How about a theatre? Can you give me the post code and phone number for one, please? Sentence13: I will be in Cambridge and am looking for some places to go in the centre while I visit. Sentence14: Can you book it for me? Just for one person starting on Wednesday for 5 nights. Sentence15: Thank you! Can you help me find a hotel to stay in? I need it to have free wifi. Sentence16: The Cambridge Arts Theatre is located at 6 saint edward's passage in postcode cb23pj. Their phone number is 01223503333. Sentence17: Can I please book a taxi to get to the hotel? Sentence18: I'd be happy to help you pick one! There are over 40 attractions in city centre; what type of activity are you interested in? Sentence19: How about a museum? Or we have some terrific colleges you could visit. There's always the theatre as well. Sentence20: Okay its address is located at 6 saint edward's passage and its postal code is cb23pj. Question: Who has spoken the sentence 18? (A) User (B) System


Output: Answer: (A) User