Q: You are shown a conversation between a user and system. Identify who has spoken the indicated sentence based on the conversation.
Sentence1: There are several nice guesthouses I can recommend. Are you looking for a specific location? Sentence2: The express by holiday inn cambridge is east area. Would you like me to book a reservation for you today? Sentence3: Thank you, that's all I need today. Sentence4: The postcode is cb13lh. Sentence5: No, but I was looking for something with 2 stars. Sentence6: Could you see if there's a hotel that meets my preferences? Sentence7: I don't have a place in mind but I would like for the guesthouse to be on pricier side. Sentence8: I'm sorry to say we don't have any expensive guesthouses. Would you like to try something cheaper? Sentence9: Yes there are five such hotels. Which area of town could you like to stay? Sentence10: Please just give me their postcode. Sentence11: Thank you, if you need anything else let me know.Good Bye. Sentence12: I am trying to locate a really nice guesthouse to take my wife to. Can you suggest any? Question: Who has spoken the sentence 1? (A) User (B) System
A:
Answer: (B) System