Definition: You are shown a conversation between a user and system. Identify who has spoken the indicated sentence based on the conversation.
Input: Sentence1: Goodbye Sentence2: That sounds good. What is their phone number? Sentence3: What kind of food do they serve? Sentence4: that was all I needed. Bye now. Sentence5: la margherita is an italian restaurant in the area of west in the cheap price range. Sentence6: I need a cheap restuarant. Probably in the west part of town Sentence7: Their phone number is 01223 315232. Sentence8: How about La Margherita? Question: Who has spoken the sentence 1? (A) User (B) System
Output:
Answer: (B) System