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: Golden Wok serves Chinese food. Would you like their address and phone number? Sentence2: The golden wok is located at 191 Histon Road Chesterton and their phone number is 01223 350688. May I help you with anything else? Sentence3: No, thank you goodbye Sentence4: Have a great day and enjoy your food. Sentence5: I want something that's moderately priced. Any type of food. Sentence6: I would like the north part of town, please. Sentence7: yes I would like their address and phone number Sentence8: What area would you like? Question: Who has spoken the sentence 3? (A) User (B) System
Answer: (B) System