You are shown a conversation between a user and system. Identify who has spoken the indicated sentence based on the conversation.
Q: Sentence1: I don't care but I need the area, entrance fee, and postcode of entertainment available in town. Sentence2: Yes, I have found 4. Ugly duckling, tang chinese, hk fusion and sesame restaurant and bar. Would you like any of these? Sentence3: I'm sorry, there are no Swiss restaurants in the area. Do you have another kind in mind that I could assist with? Sentence4: Which is your favorite? Can you get me the address, postcode, and phone number? I'll give them a call myself. Sentence5: I'm sorry I did not want British food. Are there any chinese restaurants instead located in the centre area? Sentence6: I'd recommend All Saints Church in the centre. Their postcode is cb58bs and they have free entrance. Anything else I can help you with? Sentence7: i would recommend the sesame restaurant and bar the address is 17 Hills Road City Centre, cb21nw. phone number is 01223358899. is there anything else i can assist with? Sentence8: Yes, I am looking for a place to dine. Can you recommend a restaurant in the expensive price range that serves Swiss food? Sentence9: There are many things to do in Cambridge; clubs, museums, churches, boating etc. What would you like to do? Sentence10: How about British food? Sentence11: No that is all. Thank you. Sentence12: I have several restaurants which serve British food in different areas of the town. Is there an area you prefer? Sentence13: Can you help me find some entertainment in Cambridge? Sentence14: You're welcome. Have a great day! Question: Who has spoken the sentence 3? (A) User (B) System
A:
Answer: (B) System