Instructions: You are shown a conversation between a user and system. Identify who has spoken the indicated sentence based on the conversation.
Input: Sentence1: I would like to recommend aylesbray lodge guest house, would that be alright with you? Sentence2: That wasn't available but I booked you at the Bridge Guest House. It has everything you were looking for. The reference number is 1AMM7M53 . Sentence3: i will take a moderate guest house with parking then. Sentence4: I have located several guesthouses with free parking. Can you tell me the area you would like to stay in and the price range? That would help narrow our search. Sentence5: Thank you, that is all. Sentence6: Sure. I would like it to be in the south and in the expensive price range. Sentence7: I'm looking for a guest house that offers free parking. Sentence8: I'm sorry, there are no matched in the South in that price range. The South only has moderate and cheap. Sentence9: Okay enjoy your stay. Sentence10: Yes, five people four nights, starting from Monday on. Question: Who has spoken the sentence 1? (A) User (B) System
Output:
Answer: (B) System