Definition: You are shown a conversation between a user and system. Identify who has spoken the indicated sentence based on the conversation.
Input: Sentence1: Yes, I've booked your table, they'll hold it for 15 minutes. Your reference number is 4ATJMY42 . Is there anything else I can help you with? Sentence2: kymmoy is in the expensive price range in the centre of town. Sentence3: The are on trinity lane and the post code is cb21tt. Is there anything else I can assist you with? Sentence4: Thank you and enjoy your stay in Cambridge! Sentence5: Yes, there are many places to visit near the restaurant. What kind of attraction did you have in mind? Sentence6: Yes, can you help me find some places to visit near the restaurant? Sentence7: I'm not sure. What is available? Sentence8: No, you've helped me with everything! Thanks, bye! Sentence9: Great, can I get the address and postcode. Sentence10: There is architecture, boat, cinema, college, concerthall, museum, nightclub, park, swimmingpool, theatre Sentence11: Its my first time in town, so I dont know which places are good. I am open to suggestions, so I will go with your recommendation Sentence12: Can you make a reservation for 5 people at 18:00 on wednesday for me please? Sentence13: old schools is a popular architecture attraction located on trinity lane. It is free to enter. Sentence14: Hello, I am traveling to Cambridge and I'd like to find an expensive place to dine in the centre. Question: Who has spoken the sentence 7? (A) User (B) System
Output:
Answer: (B) System