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

Example Input: Sentence1: I would like it to serve food from the americas. Sentence2: 'Hotel du vin and bistro' and 'galleria' Sentence3: Certainly, can I book your table at hotel du vin and bistro or would you prefer a table at galleria? Sentence4: i have booked you a taxi, red tesla, phone number is 718 850 4433. Sentence5: Thank you have a great day. Sentence6: Do they offer free parking? And can I get the phone number for them please. Sentence7: There are 2. Did you want me to book one of them? Sentence8: Your table has been booked and is reserved for 15 minutes, reference number is M32YYIJN . Can I help you with anything else? Sentence9: Yes, there is free parking at Hamilton Lodge. The phone number is 01223365664. Sentence10: How about european food? Sentence11: Is it possible to arrange a taxi to take me from the hotel to the restaurant by 16:00? Sentence12: I have the information pulled up. What would you like to know about it? Sentence13: I need to book a table for 3 people at 16:00 on friday at galleria Sentence14: I would like to book a table for three on Friday, at 16:00. Sentence15: I'm also looking for a hotel called hamilton lodge. Sentence16: There are many moderately priced restaurants that meet your criteria, what type of food are you looking for? Sentence17: What are the names? Sentence18: Thank you that's all that I needed Sentence19: I am looking for a restaurant in the moderate price range in the centre of town. Sentence20: Unfortunately I could not find any restaurants serving food from the Americas in the moderate price range. Question: Who has spoken the sentence 7? (A) User (B) System
Example Output: Answer: (B) System

Example Input: Sentence1: No, I'm not picky. Sentence2: I need a hotel with FREE parking Sentence3: The acorn house is moderately priced, 4 stars, and in the north. Sentence4: What is your arrival date and how many days will you be staying, please? Sentence5: I am looking for a place to stay. The hotel should have a star of 4 and should be in the type of guesthouse Sentence6: Thank you goodbye Sentence7: Okay. What part of town do you want to stay in? Sentence8: How about acorn house? They have excellent reviews. Sentence9: I'm sorry I don't need a reservation. Could you just confirm the price range, postcode and what area that is in? Sentence10: Thanks so much. I won't be needing anything further today. Sentence11: You read my mind. Yes, free parking. Sentence12: Do you have a specific pricerange you are looking for? Sentence13: Any part of town as long as it includes free parking. Sentence14: Yes, if Acorn House has free parking, please book my reservation. Question: Who has spoken the sentence 13? (A) User (B) System
Example Output: Answer: (B) System

Example Input: Sentence1: Yes! The address is gwydir street, no. 5 dale's brewery; the entrance fee is free; and the phone number is 01223311687. Can I help with anything else today? Sentence2: Can you tell me the phone number, address and price range for El Shaddai? Sentence3: I'm going to need a place to stay that has free wifi and in a guesthouse. The hotel rating a zero star. Sentence4: I'm looking for something in the centre of town, maybe an art museum? Sentence5: Have a great day! Sentence6: That sounds great. Can I please have the address, entrance fee, and phone number? Sentence7: There are a couple locations that fit that criteria. Could I recommend William's Art and Antiques museum? Sentence8: Hi, I'm traveling to Cambridge and would like to find some places to go. Can you help me? Sentence9: Yes I can! There are a total of 79 different attractions in Cambridge that you can visit. Is there a particular type of attraction you would like to see? Sentence10: No, that's it. Thanks! Sentence11: El Shaddai fits your preferences and is located in the centre of town. Would you like me to make a reservation? Sentence12: The price range is cheap, you would need to call for more specific information. Their phone number is 01223327978, and they are located at 41 Warkworth Street. Anything else? Question: Who has spoken the sentence 1? (A) User (B) System
Example Output:
Answer: (B) System