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 departure are and destination please Sentence2: I have both cheaply and moderately priced guesthouses to choose from. Do you have a preference? Sentence3: I also need a train. Sentence4: I have booked you for 2 people for 5 nights at acorn guest house. The address is 154 chesterton road and their phone number is 01223353888. Will there be anything else? Sentence5: I am looking for information in Cambridge Sentence6: must have free wi fi Sentence7: Great, Can you please book me for 2 people and 5 nights starting tuesday? Sentence8: We need to find a guesthouse in the north for our stay. Sentence9: If you need to contact the police you can phone them at 01223358966. Or, is there some specific information I can help you with? Sentence10: There's quite a few. I personally like the acorn guest house. It's 4 stars with internet access. It's located at 154 chesterton road. Question: Who has spoken the sentence 4? (A) User (B) System
Output:
Answer: (A) User