Detailed Instructions: You are shown a conversation between a user and system. Identify who has spoken the indicated sentence based on the conversation.
Q: Sentence1: Thanks for the information! Sentence2: Could you tell me if you have a 5 star hotel on the south side? Sentence3: That should be all, thank you. Sentence4: It really needs to be in the south and have a 5 star rating. It can be a hotel or guesthouse though. Sentence5: Yeah, that would be fine. Sentence6: I'm sorry but there are no hotels are guesthouses with a 5 star rating in the south. Would you like to try a 4 star rating instead? Sentence7: Do either of them have internet? I'll also take the address for both. Sentence8: You are welcome, do you need any thing else? Sentence9: You are welcome. Thank you for calling Cambridge TownInfo Centre. Goodbye. Sentence10: Unfortunately, I don't happen to have anything that meets your specifications. Can I look in another area for you? Sentence11: We have 2 guesthouses that match your needs. aylesbray lodge guest house or rosa's bed and breakfast. Does either of these fancy your interest? Sentence12: Yes, they both do. Aylesbray is at 5 Mowbray Road, and Rosa's is located at 53 Roseford Road. Question: Who has spoken the sentence 10? (A) User (B) System
A:
Answer: (A) User