Definition: You are shown a conversation between a user and system. Identify who has spoken the indicated sentence based on the conversation.
Input: Sentence1: I am looking for the Addenbrookes Hospital please. Sentence2: You're welcome. Goodbye. Sentence3: That's all I need, thank you. Sentence4: The hospital is located at Hills Rd, Cambridge Hills Rd, CB20QQ and their phone number is 0122324515. Is there anything else I can help you with? Question: Who has spoken the sentence 1? (A) User (B) System
Output:
Answer: (B) System