Instructions: You are shown a conversation between a user and system. Identify who has spoken the indicated sentence based on the conversation.
Input: Sentence1: It is cb23ar. Is there anything else I could help you with? Sentence2: I have a great portuguese restaurant if you care to try it. It's called Nando's City Centre. Or if you prefer, I have anything from italian to spanish as well. Sentence3: Can you help me find a cheap restaurant in the centre of town? Sentence4: You're welcome, enjoy your meal! Sentence5: What's the post code for Nando City? Sentence6: There are a total of 15 different cheap restaurants located in the centre of town. Is there a particular type of food you are wanting? Sentence7: Surprise me. What food type can you recommend? Sentence8: No, that's all I needed. Thanks! Question: Who has spoken the sentence 7? (A) User (B) System
Output:
Answer: (B) System