Definition: You are shown a conversation between a user and system. Identify who has spoken the indicated sentence based on the conversation.
Input: Sentence1: I apologize. I have doubled checked and there is no entertainment venues in the centre. The entertainment venues that I do have are located in the east, south and west. Sentence2: I would also line places to go that is entertainment and should be in the centre of town. Sentence3: I would like to take a train from Cambridge to Kings Lynn. Sentence4: Train 8665 leaves Cambridge at 17:11 and arrives in Kings lynn at 17:58. How does that sound? Sentence5: I have booked that for you! The reference number is C63RMSDC and you will owe 31.36 at the station. Do you need anything else? Sentence6: I'm quite sure that there are colleges in the centre of town. Can you ask a manager to help you look? Sentence7: Leave after 17:00 on Sunday. Sentence8: What day and time? Sentence9: Great. Please book it for 4 people. Sentence10: Yes there is. I saw it in the pamphlet. Check again please. Sentence11: Okay there is the Christ's College located at Saint Andrew's Street and it's free. Also Corpus Christi College, King's Parade cost 2 pounds. Sentence12: I'm sorry, there are no such places. Can I change your search criteria? Question: Who has spoken the sentence 6? (A) User (B) System
Output:
Answer: (A) User