Definition: You are shown a conversation between a user and system. Identify who has spoken the indicated sentence based on the conversation.
Input: Sentence1: There are four listings for the provided criteria. Do you prefer the centre or south area? Sentence2: Kohinoor is a cheap Indian restaurant in the centre of town. Would you like their address? Sentence3: I don't care. Sentence4: yes please Sentence5: The address is 74 Mill Road City Centre. Sentence6: Hello. I want a cheap barbeque restaurant. Sentence7: There is not a restaurant matching your request. Would you like a different restaurant? Sentence8: Are there any cheap indian restaurants? Sentence9: Thank you, goodbye. Sentence10: Thank you, goodbye. Question: Who has spoken the sentence 4? (A) User (B) System
Output:
Answer: (A) User