Definition: You are shown a conversation between a user and system. Identify who has spoken the indicated sentence based on the conversation.
Input: Sentence1: Yes, the Cambridge Lodge restaurant is also an upscale restaurant serving European food. Sentence2: Thank you. Sentence3: The Cambridge Lodge Restaurant is located is the west part of town at Cambridge Lodge Hotel 139 Huntingdon Road City Centre. Is there anything else you need? Sentence4: No thank you. That is all the info I needed. Sentence5: Eraina is an an upscale restaurant serving European food. Sentence6: I am looking for an upscale restaurant with European food, please. Sentence7: What is there address and area? Sentence8: Is there anything else available? Question: Who has spoken the sentence 4? (A) User (B) System
Output:
Answer: (A) User