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

Input: Consider Input: Sentence1: I have pulled up City Stop Restaurant. What information do you need? Sentence2: I would like to book a table there for 4 peole on saturday at 19:45. and can i please get a reference number? Sentence3: Alright, thank you very much. That's all I need for now. Sentence4: Booking was successful. The table will be reserved for 15 minutes. Reference number is : OMKMNJEM . Sentence5: I am looking for information about city stop restaurant? Sentence6: You are welcome. Goodbye. Question: Who has spoken the sentence 3? (A) User (B) System

Output: Answer: (B) System

Input: Consider Input: Sentence1: Could you tell me more about it? What is its price range? Where is it located in the south? Sentence2: I'm sorry that date and time slot is already full. Would you like to try a different date/time? Sentence3: It is expensive and the address is 15-17 norman way, coldhams business park Sentence4: what about 4:30 on tuesday? Sentence5: There is one Mexican restaurant in the south. The Chiquito Restaurant Bar. Would you like me to book it for you? Sentence6: Thank you, that is all I need today. Sentence7: I am trying to find a restaurant in the south of the city that serves modern American food. Sentence8: I was able to book a table for 1 at 16:30. Your reference number is P62404I5 . Sentence9: I didn't find any modern American restaurants in the south end. Are you open to other areas? Sentence10: Sounds delicious, could you book a table for 1 at 17:30 on Tuesday? Sentence11: You are welcome. Goodbye. Sentence12: What about a restaurant there that serves mexican food? Sentence13: It is in the expensive price range and is located at 2G Cambridge Leisure Park Cherry Hinton Road Cherry Hinton cb17dy Sentence14: Great! Can you also tell me the address and price range for the Express by Holiday Inn Cambridge? Question: Who has spoken the sentence 4? (A) User (B) System

Output: Answer: (A) User

Input: Consider Input: Sentence1: Give me the arrival time and train ID of the earlier train. Also find me a cheap restaurant that serves north american food if available or Indian food. Sentence2: I booked you a table at kohinoor! Here is your reference number ZTGXVBXU . Anything else I can do for you? Sentence3: There's a train that arrives at 20:07. If you don't want to cut it that close, there's an earlier train that arrives at 18:07. Sentence4: I would like to arrive by 20:15. Sentence5: The arrival time of the TR5389 is 18:07. There are four restaurants that meet your criteria. Would you like a recommendation? Sentence6: Do you have something that leaves later but still makes the arrival time? Sentence7: The first train leaves at 5:50. Sentence8: Where and when are you departing from? Sentence9: Yes, any you choose will be fine. I'll need to book a table for the same day, at 15:30, and it will just be me. Sentence10: great, what is your preferred departure or arrival time? Sentence11: I'm going to Ely from Cambridge on Sunday. Thank you. Sentence12: I'm hoping to book a train. Sentence13: Great, that's all I need, thanks so much for your help! Have a great day! Sentence14: Have a good day as well. Bye. Question: Who has spoken the sentence 9? (A) User (B) System
Output: Answer: (B) System