Given the task definition and input, reply with output. You are shown a conversation between a user and system. Identify who has spoken the indicated sentence based on the conversation.

Sentence1: Call them at 01223217671 Sentence2: You are welcome. Sentence3: Thank you, that's all I need. Sentence4: I need a hospital with an antenatal department, please find one for me. Question: Who has spoken the sentence 2? (A) User (B) System

Answer: (A) User