You are shown a conversation between a user and system. Identify who has spoken the indicated sentence based on the conversation.

[Q]: Sentence1: Help me reserve a taxi to take me to kambar Sentence2: Sure! when would you like to arrive? Sentence3: Sure! What is your departure site? Sentence4: Great. Have a wonderful day. Sentence5: Okay I booked your taxi successfully Sentence6: It doesn't matter. I just want to leave there after 10:45 Sentence7: I need to leave from lovell lodge Sentence8: Great, what are the details, please? Sentence9: A white honda will be picking you up, the contact number is 07580557287. Is there anything else I can help you with? Sentence10: That's all I need for now. Thank you. Goodbye. Question: Who has spoken the sentence 3? (A) User (B) System
[A]: Answer: (B) System

[Q]: Sentence1: How about an expensive restaurant that serves British food? Sentence2: Cineworld sounds perfect. What's their postal code? Sentence3: The postal code is cb17dy. Can I get you anything else? Sentence4: There are six expensive British restaurants in Cambridge. Do you have a preferred section of town? Sentence5: Have a good time! Sentence6: It's all new to me. Could you recommend one? Sentence7: Sure thing, we have the cineworld cinema located at Cambridge leisure park, Clifton way. Sentence8: Absolutely, I recommend the Cambridge Chop House at 1 Kings Parade in the centre of town. This is a highly recommended British experience by locals and tourists a-like. Sentence9: No, that'll be all. Thank you for all of your help today. Sentence10: I am sorry but there are no restaurants matching your requests. Would you like me to search for a different food type? Sentence11: Great. Could you also help me find a cinema in the south of town? Sentence12: Hello, I am trying to locate a restaurant that serves northern European food, and I would prefer a more elegant setting. Question: Who has spoken the sentence 3? (A) User (B) System
[A]: Answer: (B) System

[Q]: Sentence1: Happy to be of service, and enjoy your time in Cambridge! Sentence2: the postcode is cb30af Sentence3: Thank you! Is it a European restaurant? Sentence4: cafe jello gallery is a nice place to visit. cambridge and county folk museum is nice too. Sentence5: Let's see...restaurant, museum...nope. That's everything I need! Sentence6: i need to find a place to go in the west Sentence7: There is the cambridge lodge restaurant, which is in the expensive price range. Address Cambridge Lodge Hotel 139 Huntingdon Road City Centre. Would you like me to book a table for you? Sentence8: Can you tell me about a couple museums, any type, and let me know the cost. Sentence9: Entrance into cafe jello gallery is free. Is there anything else I can help you with today? Sentence10: There are several colleges and museums in the west and one entertainment venue. What are you interested in? Sentence11: I found a nice restaurant for you called Saint Johns Chop House. It's not too pricey and tastes great! Sentence12: Is that located in the west? I forgot to mention I wanted to stay close to where the museum is. Sentence13: What is the entrance fee for cafe jello gallery? Sentence14: It is a british restaurant. Does that meet your needs? Sentence15: Yes it is in the west. Do you need anything else? Sentence16: I also need a place to eat near the attraction. Sentence17: No I would like to find European restaurant. Sentence18: Just the postcode. Thanks for all of your help! Question: Who has spoken the sentence 12? (A) User (B) System
[A]:
Answer: (A) User