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

Ex Input:
Sentence1: There are 5 expensive Indian restaurants available in the west. Would you like me to book one of those for you? Sentence2: Can you help me find and expensive restaurant in the west? Sentence3: I would like to eat at an indian restaurant please. Sentence4: You are welcome. Thank you for calling Cambridge TownInfo Centre. Good bye. Sentence5: Yes, please choose one and book it for 6 people at 13:30 on Thursday. Sentence6: We have nine. What sort of cuisine would you like? Sentence7: No, that's it for today. Thank you for all your help. Good bye. Sentence8: Ok. I was able to book cocum on thursday at 13:30 for 6 people. Your reference number is LTZ2TPIA . Can I help you with anything else? Question: Who has spoken the sentence 3? (A) User (B) System

Ex Output:
Answer: (B) System


Ex 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

Ex Output:
Answer: (B) System


Ex Input:
Sentence1: Yes, I'd also like to find an expensive restaurant in the west side of town. Sentence2: No that's all I need. Thanks for your help! Sentence3: Just pick one in the same area as Queens' College, and can you book a table for 1 at 18:30 on Saturday please? Sentence4: I certainly will. Thanks for the help that is all I needed. Sentence5: You're welcome. Enjoy your visit! Sentence6: Hi, what are some fun attractions in west Cambridge? Sentence7: There are 13 places, colleges, entertainment, and museums Sentence8: There are nine restaurants that fit your requirements. What type of food are you interested in? Sentence9: Your table at Graffiti is reserved for Saturday at 18:30 for one person. Your reference number is AV0KBAEG . Is there anything else I can help you with today? Sentence10: How about Graffiti? It's an expensive restaurant that serves British food in the west area. Sentence11: Graffiti sounds good. Can you book a table for me? Sentence12: Queens' College is a wonderful play to visit. Their address is Silver Street. The entrance fee is 2.50 pounds. Is there anything else I can help you with? Sentence13: Let us know if you need anything else. Sentence14: I need an attraction in the west part of town. Please provide the address and amount of the entrance fee so I can prepare. Question: Who has spoken the sentence 12? (A) User (B) System

Ex Output:

Answer: (A) User