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

Example Input: Sentence1: The address for that is 6 trinity street. Sentence2: I don't need to make the reservation now. Thank you though. I would like the address for Cambridge Contemporary Art please. Sentence3: Can you help me find a train coming from cambridge leaving on thursday? Sentence4: How many tickets please? Sentence5: I want to arrive by 21:30 if possible. Sentence6: Yes I have many options. What time would you like to leave or arrive by? Sentence7: Train TR3255 is arriving at 21:06,is that okay for you? Sentence8: Thanks for using our service today, glad I was able to assist you. Hope you have a great day. Sentence9: That could work for me. Sentence10: thank you, that will be all. good bye. Sentence11: I will be going to Leichester. Sentence12: There are 202 trains departing Cambridge on Thursday. Where do you plan to head to that day? Question: Who has spoken the sentence 3? (A) User (B) System
Example Output: Answer: (B) System

Example Input: Sentence1: I have 23 places. What area would you prefer to be in? Sentence2: There is Cafe Jello Gallery in the west, Cambridge Artworks in the east and Broughton House Gallery in the centre. Does any of those sound appealing? Sentence3: Just the price range and postal code please. Sentence4: Cafe jello gallery postcode is cb30af and the entrance is free, is there anything else I can do for you? Sentence5: Here is the address 529 Newmarket Road Fen Ditton. Sentence6: Do you have an attraction type preference? Sentence7: You're welcome! Enjoy your visit! Sentence8: that is it. thank you for helping me Sentence9: Yes, I would like to see a museum. Can you tell me the postcode and entrance fee for it? Sentence10: I have no particular area preference. Can you list a few for me to select from? Sentence11: Yes could I have their postcode and entrance fee? Sentence12: Can you give me more information about Yu Garden. Sentence13: Of course! It is a chinese cuisine restaurant located in the east. Anything else you would like to know? Sentence14: I am traveling to Cambridge and excited about seeing local tourist attractions, can you help? Sentence15: I am also looking for the restaurant Yu Garden. Sentence16: Their price range is expensive and the postcode is cb58pa. Are you sure that is all you needed? Question: Who has spoken the sentence 13? (A) User (B) System
Example Output: Answer: (B) System

Example Input: Sentence1: Yes, we can help you with that. It is located at 82 Cherry Hinton Road Cherry Hinton. The phone number is 01223244149. Is there anything else you would like to know? Sentence2: Great! Thank you for your time. Nothing else for now, goodbye. Sentence3: No thank you I will think of something else once I call a friend. Sentence4: Can you make a reservation for 3 people at 20:00 on Tuesday? Sentence5: Great! You're booked at Peking Restaurant with reference number V6TEUN6T . May I help with anything else? Sentence6: Hi I am looking for some information on the good luck chinese food takeaway. Sentence7: I am sorry Booking was unsuccessful for that time, can I help you find a place in the same area and type of food? Sentence8: Thank you for using our system. Sentence9: Yes actually. I'd like the reservation for any other restaurant that is in the same area and price range as The Good Luck Chinese Food Takeaway. Sentence10: Is there anything else I can help you with? Question: Who has spoken the sentence 6? (A) User (B) System
Example Output:
Answer: (A) User