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

Ex Input:
Sentence1: Alright. Enjoy your stay in Cambridge! Sentence2: Thank you. Have a great day. Sentence3: The train that arrives closest to 16:45 is best. I just need to know what time it leaves and arrives. Oh and of course it's ID. Sentence4: Yes. I am looking for a place to go in the west part of town. With preference to college. Sentence5: There are 6 days that arrive before 16:45 on this day. Did you have any other preferences? Sentence6: I am looking for information in Cambridge. I need a train ticket. Can you help? Sentence7: In the west part of town Clare College. The entrance fee is 2.50 pounds. Sentence8: Great that's all the information I need! Sentence9: Certainly. What is your departure location and your arrival location? Sentence10: It has been my pleasure. Feel free to contact us with any other questions you may have in the future. Sentence11: I would like to depart from London Liverpool Street and arrive in Cambridge. I would like to leave Sunday and arrive by 16:45? Sentence12: Of course! That will be TR6578 leaving at 13:39 and arriving at 15:07. The price is 13.28 pounds and it's an 88 minute duration. May I help with anything else? Question: Who has spoken the sentence 5? (A) User (B) System

Ex Output:
Answer: (B) System


Ex Input:
Sentence1: It's located in southern Cambridge at cambridge leisure park, clifton way. It's phone number is 00872208000. Do you need anything else? Sentence2: Thank you, that is all I need. Sentence3: thanks alot and is there parking for two cars? Sentence4: What type of food would you like? Sentence5: Actually never mind. I would actually like just find a place to stay in the cheap price range in the west. Sentence6: Yes, can you help me find a place to eat? Sentence7: Sure, I can help you with that. Was there a particular type of cuisine you were interested in? Sentence8: Fantastic, enjoy your trip! Sentence9: I certainly hope so! We have a lot of interesting places to see in Cambridge. Is there something specific you're looking for? Sentence10: There is a place I want to see, can you help me? Sentence11: The hotel I'm looking for should have a star of 4, in the cheap range, somewhere in the West. It'll be for 3 people and 4 nights starting Wednesday. Sentence12: Okay. We have you booked at the Cambridge Belfry. The reference number is Y8Y2HVXE . Sentence13: I am looking for a attraction called cineworld cinema. Sentence14: I'm afraid I can only see that they have parking available. If you need to park two cars, I would phone them on 01954714600. Can I help with anything else? Question: Who has spoken the sentence 1? (A) User (B) System

Ex Output:
Answer: (B) System


Ex Input:
Sentence1: Yes a hotel that is near that one. Sentence2: Thank you, that's all I need! Sentence3: May I have the reference number for the booking please? Sentence4: I apologize but the booking was unsuccessful, the hotel is booked. Do you want me to check one of the other hotels? Sentence5: Are you looking for a hotel? There are 19 4 star hotels that offer free parking. Do you have a price range or area of town you want to stay? Sentence6: I need a four star room, free parking too. Sentence7: Could I book the Marriot for 4 people starting on Wednesday? It would be for 5 nights. Sentence8: I am sorry. The Huntington Marriott is not available for those days. Would you like to try another hotel? Sentence9: The cambridge bellfry has availability. Will that do? Sentence10: I'd prefer something in the same price range as the Marriott. It's all going on an expense report anyway, no reason to be stingy. Sentence11: The hotel should be in the West side of town. Sentence12: I reserved a room at the expensive 4 star University Arms Hotel. It is in the city centre though. Reference number is A3SLP7HG . Is there anything else today? Sentence13: Is there anything in the same price range you could try? Sentence14: Great. I was happy to help. Good-Bye! Sentence15: There are 3 four star locations to choose from: Finches Bed and Breakfast, the Huntingdon Marriot, and the Cambridge Belfry. The Huntingdon is listed as expensive while the others are cheap. Sentence16: Yes, I will book 5 nights at The Marriot for 4 people starting Wednesday. Anything else I can do for you? Question: Who has spoken the sentence 12? (A) User (B) System

Ex Output:

Answer: (A) User