Definition: You are shown a conversation between a user and system. Identify who has spoken the indicated sentence based on the conversation.
Input: Sentence1: Thank you so much! I think that is all I need today. Sentence2: You are very welcome. I am glad I could help you today. Sentence3: I got injured and I am looking for a hospital nearby Sentence4: The Addenbrookes Hospital is located at Hills Rd, Cambridge. Sentence5: I got injured. I need a phone number for a hospital near by. Sentence6: Here is the phone number for Addenbrookes Hospital, 01223245151. Question: Who has spoken the sentence 3? (A) User (B) System
Output:
Answer: (B) System