Q: You are shown a conversation between a user and system. Identify who has spoken the indicated sentence based on the conversation.
Sentence1: The only hotel that matches your criteria is "express by holiday inn cambridge." Do you need help with booking? Sentence2: I really would like a 4 star hotel. Is there one in the moderate price range, then? Sentence3: I have confirmed your booking at carolina bed and breakfast starting Monday for 4 nights. Your reference number is RTNZCSBJ . Is there anything else I can help you with? Sentence4: Carolina Bed and Breakfast sounds nice. Could I have it booked for 6 people for 4 nights starting on monday? Sentence5: It has 2 stars. Would you like to book? Sentence6: Can you find me an expensive place to stay that is located in the east? Sentence7: Does that hotel have a 4-star rating? Sentence8: We have 3 that satisfy that criteria. A and B guest house, Carolina Bed and Breakfast, and Warkworth House all fit. Do you have a preference? Question: Who has spoken the sentence 5? (A) User (B) System
A:
Answer: (B) System