Detailed Instructions: You are shown a conversation between a user and system. Identify who has spoken the indicated sentence based on the conversation.
Problem:Sentence1: Yes, there are quite a few 4 star hotels with free parking. What area would you like to stay in? Sentence2: Thanks, I need a 4 star hotel in the east, the hotel needs to has free parking. Sentence3: No problem. Your reference number is U6E0DEZR . Sentence4: I need to book it starting Saturday for 3 nights. There will be 3 guests. Sentence5: Thanks so much. That's all I need. Sentence6: Hi, I need to find a hotel with a 4 star rating that includes free parking. Do you have anything like that? Sentence7: There are some guestrooms that fit those requirements. Can I book a room at Carolina Bed and Breakfast for you? Sentence8: I'm happy to be of service. Please don't hesitate to contact us again if you have more questions. Goodbye! Question: Who has spoken the sentence 4? (A) User (B) System
Solution:
Answer: (A) User