Definition: You are shown a conversation between a user and system. Identify who has spoken the indicated sentence based on the conversation.
Input: Sentence1: The west, please. Sentence2: No, you've been great. Thank you. Goodbye. Sentence3: I'm looking for a place to stay. I'd like a hotel, not a guesthouse, and I don't care about internet. Sentence4: Thank you. Goodbye. Sentence5: Bye, have a good day Sentence6: You are all set. The reference number is 12OOOWTR . Can I help you with anything else today? Sentence7: Do you have a specific area you would like to stay in? Sentence8: Your are welcome. I trust you will enjoy your visit. Sentence9: Great! Do you need information on the Cambridge Belfry, or would you like to book a room? Sentence10: I'd like the Cambridge Belfry please. Sentence11: I would like a room starting on Sunday for 4 nights. There will be 6 of staying. Sentence12: I can offer you the Huntingdon Marriott, which is expensive, or the Cambridge Belfry, which is cheap. Question: Who has spoken the sentence 7? (A) User (B) System
Output:
Answer: (B) System