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'm sorry. I changed my mind. I don't want a guesthouse. Are there any hotels with 2 stars? Sentence2: Great that was all I needed today, thank you. Sentence3: Is there a particular area you would like to stay in? Sentence4: There isn't a guesthouse with 2 stars and free internet available. Is there another type of hotel I can look up for you? Sentence5: Great Glad I could be of help to you. Sentence6: I have you booked in the Ashley hotel. Your reference number is CW6YMT0B . Is there anything else I can do for you today? Sentence7: No, just any 2-star hotel with free wifi will do. Sentence8: Hi, I need a guest house please. Sentence9: Do you have a specific location you want to be? Sentence10: No, but I need free wifi and I would like a 2 star guesthouse please. Sentence11: I have 3 guesthouses all in the moderate price range. Would you like me to choose one for you? Sentence12: I found 3 for you all in the expensive price range. Can you please give me the details so that I may book it for you? Sentence13: Yes, how about a guesthouse with 3 stars and free wifi instead? Sentence14: I would like it for 6 people for 2 nights starting on Wednesday. Question: Who has spoken the sentence 11? (A) User (B) System
Example Output: Answer: (B) System

Example Input: Sentence1: Can you tell me more about gourmet burger kitchen? Where is it? Sentence2: No, that's all I need for now. you've been very helpful. Thanks. Sentence3: They are in the towns centre. Expensive but worth every penny. Would you like to book a table? Sentence4: How about the postcode and attraction type for Byard Art? Sentence5: Thanks, I'm all done here. Sentence6: I have that table reserved. Your reference number is K94DWSQN . Can I help you with a taxi or hotel room? Sentence7: You're welcome. Have a great day! Sentence8: Unfortunately, we do not have information on several of them. But, Byard Art, Wandlebury Country Park, and Sheep's Green and Lammas Land Park are all free admission attractions. Sentence9: I have booked you a taxi that will get you there by 13:15. The car type is a blue Tesla and the contact number 07664553144. Can I do anything else? Sentence10: Enjoy yourself.You can call us if you need anything else Sentence11: no, not really. What are entrance fees on the 8 attractions? Sentence12: What can you tell me about attractions in the south part of town? Sentence13: I need a taxi from Byard Art that will get us to the restaurant on time. Sentence14: We have 8 attractions in the south part of town. Do you have a preference of type? Sentence15: Yes please, a table for 6 people at 13:15 on Tuesday would be amazing. Sentence16: Postcode, cb21sj, and the type is museum. Is there anything else I may help you with? Question: Who has spoken the sentence 3? (A) User (B) System
Example Output: Answer: (B) System

Example Input: Sentence1: Sure thing! What kind of food are you looking for? What is the price you'd like to pay - Cheap, Moderate, or Expensive? Sentence2: There are 2 trains making that trip. One leaves at 21:50, the next at 23:50. Would you like to book one of those trains? Sentence3: yes Booking was successful, the total fee is 4.4 GBP payable at the station . Reference number is : T5GD6FIT Sentence4: Yes, I'd like to book the train that leaves at 21:50. Sentence5: I need a train to Ely on Monday. Sentence6: Did the booking go through? Sentence7: I need to depart from cambridge after 21:45. Sentence8: Great! Can you also help me find a place to dine in the centre area? Sentence9: I can help you with that. Can you please tell me what station you would like to depart from? Sentence10: I would like to book the train leaving at 21:50. Sentence11: Thank you, that was quick expedient service. I am all set, hope you have a great day. Sentence12: How about darrys cookhouse and wine shop? Their address is 40270 King Street City Centre. Postcode is cb11ln and phone number is 01223505015. Sentence13: You're so welcome, enjoy your visit! Sentence14: I'm looking for European food in the city's centre and in the expensive range. I need the address, postcode and the phone number. Question: Who has spoken the sentence 2? (A) User (B) System
Example Output:
Answer: (A) User