Definition: You are shown a conversation between a user and system. Identify who has spoken the indicated sentence based on the conversation.
Input: Sentence1: Sorry, they don't have those dates available. Would you like me to try for other days or another location? Sentence2: Glad I could help. Have a nice stay. Bye. Sentence3: Sorry, the Acorn is not open then, shall I try somewhere else that fits your criteria? Sentence4: The Acorn Guest House is a 4-star guesthouse in the North. It has free parking and wifi, and is in the moderate price range. Would you like a room? Sentence5: That sounds like what I am looking for. Yes, I'd like to book a room. Sentence6: Good news, The Acorn just opened up for one night. Your reference number is UKMNFD3Q . Can I help you with anything else today? Sentence7: Hi, can you help me find a place to stay? I'd like a hotel on the north side, please. Sentence8: I would like to book a room for 3 days starting Tuesday. There is a total of 3 people. Sentence9: Great! When would you like to stay? Sentence10: Yes, whatever you can find. Sentence11: Thanks, I think that's all I need right now. Bye Sentence12: Can you try for just 1 night then? Question: Who has spoken the sentence 8? (A) User (B) System
Output:
Answer: (A) User