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 need a place to stay that has free wifi. Sentence2: There are 33 cheap hotels with wifi in Cambridge. Do you have a particular area you are interested in? Sentence3: could you provide details for something in the cheap price range? Sentence4: I recommend alexander bed and breakfast on 56 saint barnabas road would that due? Sentence5: I have 32 places that offer wifi, do you have a price range preference? Sentence6: No, I have no preference. Just pick one. That will be fine. Question: Who has spoken the sentence 4? (A) User (B) System
Output:
Answer: (A) User