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: Wonderful. I have everything I need. Thank you. Goodbye. Sentence2: Can you give me the address for Addenbrookes Hospital? Sentence3: If that's all, then you are welcome. Thank you for contacting the centre. Goodbye. Sentence4: I have the location on Hills Road in Cambridge, CB20QQ. Their phone number is 01223245151. Question: Who has spoken the sentence 1? (A) User (B) System
Student:
Answer: (B) System