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 was just involved in a car accident. Sentence2: You should contact this number: 01223358966. Sentence3: The address is Parkside, Cambridge, postcode CB11JG. Sentence4: Yes, I have a passenger that is hurt. How can I get to the hospital to make sure they are okay? Sentence5: You are welcome. Have a great day. Sentence6: I'm very sorry to hear that! Have you called the police yet? If not here is their number 01223358966. Is there anything else I can help with? Sentence7: Thanks, what's the address and postcode to the police department? Sentence8: Thank you for the info. That'll be all for now. Question: Who has spoken the sentence 2? (A) User (B) System
Example Output: Answer: (A) User

Example Input: Sentence1: Of course, when would you like your reservation to be and for how many people? Sentence2: Do you have a area preference? Sentence3: No that will be all. Sentence4: Excellent, I have booked you a table for 6 at 17:00. Tables are reserved for 15 minutes. The reference number is RI11SSDU . Sentence5: Does it have free wifi? Sentence6: Acorn guest house matches your requirements, would you like to book there? Sentence7: Do you need anything else? Sentence8: What are my choices for a moderate hotel? I don't need free parking. Sentence9: The hotel does have internet. Sentence10: I have results for 18 moderately priced places, what area are you looking to stay in? Sentence11: Great can I get their address, phone number, and postcode? Sentence12: I would like to make a reservation at Hotel Du Vin and Bistro. Sentence13: I have 2 European and 2 Modern European. Do you have a preference? Sentence14: Thank you for contacting Cambridge TownInfo Centre, enjoy you hotel stay and your dinner! Sentence15: I would like the restaurant to be in the Centre and serve European food. Sentence16: The acorn guest house is located at 154 chesterton road, postcode cb41da and the phone number is 01223353888. Sentence17: Yes, in the centre. Sentence18: Six people on Wednesday, at 17:00 Sentence19: Thank you so much for all your help! Sentence20: I am also looking for a restaurant. The restaurant should be in the same price range as the hotel and should serve European food. Sentence21: No particular area, I need a hotel with a 4 star rating. Sentence22: There are 2 to choose from: Hotel Du Vin and Bistro, and Galleria, and there are 2 others that are similar, but serve modern european. Do any of these sound good? Question: Who has spoken the sentence 10? (A) User (B) System
Example Output: Answer: (A) User

Example Input: Sentence1: I think we'd like to see a museum - do you have any recommendations? Sentence2: I am looking for information on a train that goes to Cambridge and arrives at 9:45 Sentence3: Their phone number is 01223312112. Is there anything else I can help with? Sentence4: That sounds perfect. What is there address? Sentence5: There are lots of nice attractions in town. Do you have a preference for type or area? Sentence6: Cafe Jello Gallery, 13 Magdalene Street, and there is no entrance fee. Is there anything else I can assist you with? Sentence7: Thank you and have a good day! Sentence8: The departure time is 07:39 for that train. Can I help you with anything else? Sentence9: I'm departing from London Liverpool Street and I want to leave on Tuesday. Sentence10: No that will be all. Thanks. Sentence11: Yes, can you tell me some good places to go while I'm in town? Sentence12: Okay great! I have one train that would get you to Cambridge on Tuesday by 09:07. Would you like me to book that for you? Sentence13: There are a few that arrive at cambridge by 09:45 what day are you arriving and where are you departing from? Sentence14: Do you have their phone number? Sentence15: There are 23 museums all around the city. If you don't have any area preferences, Cafe Jello Gallery on the west side is very nice, and they have no entrance fee. Sentence16: No I just need to know the departure time please. Question: Who has spoken the sentence 15? (A) User (B) System
Example Output:
Answer: (B) System