Teacher:You are shown a conversation between a user and system. Identify who has spoken the indicated sentence based on the conversation.
Teacher: Now, understand the problem? Solve this instance: Sentence1: Good bye now! Sentence2: Great! Hope you have a better day. Sentence3: No thank you. I think I have everything. Sentence4: Addenbrookes Hospital is located at Hills Rd, Cambridge. Is there a particular department you're looking for? Sentence5: I need a hospital in town. Sentence6: Thanks, that's all. Good bye. Question: Who has spoken the sentence 4? (A) User (B) System
Student:
Answer: (A) User