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

Ex Input:
Sentence1: Your booking was successful! Your reference number is EV4ADBI9 . Sentence2: I need it for Sunday. Sentence3: Yes. Let's book it. Sentence4: I would like it to be in the west. It doesn't matter if it has free parking or not. Thank you! Sentence5: There are four three star guest houses. Is there an area of town that interests you the most? Sentence6: Train TR3154 leaves cambridge at 13:06 and will arrive at peterborough at 13:56 on Monday. Would you like me to book a ticket? Sentence7: I am looking to stay at a guesthouse that has a 3 star rating. Sentence8: ok for how long and how many people please Sentence9: I want a train that goes to peterborough and leaves after 13:00 Sentence10: Does it leave on Monday? Sentence11: There is the hobsons house. Would you like me to book it? Sentence12: For 3 days and 2 people,I need a confirmation number too Sentence13: and what day do you need the reservation for? Sentence14: The next train is the TR0545 leaving cambridge at 13:06. Would you like me to book it or more information? Question: Who has spoken the sentence 12? (A) User (B) System

Ex Output:
Answer: (A) User


Ex Input:
Sentence1: Booking was successful for Tuesday. Your Reference number is : 0J3V1091 . Sentence2: I'm sorry that doesn't seem to be available would you like me to try a different day or guesthouse? Sentence3: I'm sorry, there does not seem to be a historical site or hiking area in Cambridge. Is there anything else I can help with? Sentence4: Sure, I can help you with that. What section of town were you looking for? Sentence5: Doesn't really matter if they offer either of those or not. I just want it to be a 0 star hotel. Sentence6: Then the city centre north b and b is what you want, shall I book you? Sentence7: i don't really care about the area. Sentence8: I want to see local sights, can you help? Sentence9: I like hiking and seeing historical sites. Sentence10: Okay. Are you interested in hotels that offer internet and/or parking? Sentence11: Yes, I would like to find a hotel in the cheap price range? Sentence12: Yes, a guesthouse is fine. I was looking for zero stars and in the cheap price range. Sentence13: Great, thanks. I don't need anymore help. Goodbye! Sentence14: Yes, please book it for me. Sentence15: I'm sorry, I seem to be having an error in my system. You want a booking at the citycentre north B&B for 6 people, 5 nights, on Monday? Sentence16: I'm also looking for somewhere to go. Perhaps the college. Can you tell me the postcode for the college? Sentence17: City Cenrtree North and B is a cheap hotel,would you like me to book it for you ? Sentence18: Let book the same but on Tuesday instead. Sentence19: I'm happy I could help today. Goodbye! Sentence20: There are 18 colleges in town. I recommend christ's college in the centre. The postcode is cb23bu. Sentence21: Yes, there is a wide variety, do you have an activity type that your are interested in? Sentence22: Yes please, 6 people for 5 nights and we would be arriving Monday. Question: Who has spoken the sentence 21? (A) User (B) System

Ex Output:
Answer: (B) System


Ex Input:
Sentence1: Is there any architecture attraction in the city Centre? Sentence2: The postcode is cb58bs. Will that be all? Sentence3: That will indeed be all for me today. Thank you! Bye Sentence4: You are very welcome. Have a nice day. Sentence5: Can you just give me the postcode for that one please? Sentence6: There are trains meeting those requirements leaving at 15:00, 17:00, 19:00, 21:00, 23:00. They all take 51 minutes and cost 23.60 pounds. Sentence7: I think I want the one leaving at 17:00. What's the train ID for that one? Sentence8: The train ID is TR1791 would you like me to book a seat? Is there anything else I can help you with today? Sentence9: I am looking for information in Cambridge Sentence10: What do you want to know ? Sentence11: There are 5 great places to visit in the centre. My favorite is All Saints Church, would you like the address? Sentence12: I should have told you that already, I apologize. I need to take a train from cambridge to london kings cross, on thursday leaving after 15:00. Question: Who has spoken the sentence 6? (A) User (B) System

Ex Output:

Answer: (A) User