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

Ex Input:
Sentence1: It looks like there are hourly trains starting at 5:09. Did you have a particular day and time in mind? Sentence2: Thanks for the help. Sentence3: Will you train arriving at 07:54 work ok for you? Sentence4: Yes I need it booked for 2 people please. Sentence5: Unfortunately, there are no other Italian restaurants in the east. Would you like me to find you one in another area? Sentence6: Is the pizza hut in the moderate price range? Sentence7: I've successfully booked 2 tickets for you, the reference number is 9FE8N16G . Sentence8: I am looking for an Italian restaurant in the east. Sentence9: Pizza hut fen ditton matches your description. Sentence10: I guess it'll have to do. Can you book us a table for 2 on Wednesday at 14:00 please? Sentence11: Uh, no pizza hut's please. Something more classy please. Sentence12: Absolutely! To start, let me get more details. What are your desired departure and arrival cities? Sentence13: Thanks so much! Can you help me with train tickets too? Sentence14: Yes, it is. Should I book it for you? Sentence15: Yes, I'd like to book the train for Wednesday and I want to arrive in Cambridge by 08:30. Sentence16: Booking was successful. The table will be reserved for 15 minutes.Reference number is : H4BTTI6P . Sentence17: The train should go to cambridge and should depart from leicester. Sentence18: Have a great day! Question: Who has spoken the sentence 7? (A) User (B) System

Ex Output:
Answer: (B) System


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: I'm sorry, I just need the arrival time and price, please. That is departing from cambridge, right? Sentence2: I am also looking for a place to stay. Sentence3: You are booked! Your reference number is GVQ282KF . Is there anything else I can help you with? Sentence4: TR9493 arrives at 24:45. It will cost you 17.20 pounds per ticket. Anything else? Sentence5: Can you help me find a train leaving after 20:45 going to norwich? Sentence6: Can you please book me 1 ticket for TR9493. Sentence7: How about The Ashley Hotel? I need a reservation please. Sentence8: Ok. Would you prefer a hotel or a guesthouse? Sentence9: Can you book it for me and get a reference number ? Sentence10: thanks and welcome to Cambridge Sentence11: I double checked and there are no hotels in the cheap range, in the north. The Ashley Hotel and the Lovell Lodge are moderately priced and in the north. Sentence12: I need it in the north and free wifi and cheap. Sentence13: that is it for now. thank you Sentence14: There are 9 hotels available do you have a preference on price range or which area the hotel is in? Sentence15: Great, I need a reservation for 5 people. Sentence16: Booking was successful. Reference number is : 8O3M27N5 .anything else Sentence17: There are 3 trains. They leave at 21:36, 22:36, and 23:36. Can I book one for you? Sentence18: How many tickets do you need? Sentence19: I will be travelling on Monday. Sentence20: Can you make a reservation for Friday for 5 people, 3 nights please? Sentence21: The lovell lodge is hotel 2 star in the north area of town in the moderate price range with free internet and parking. Sentence22: What day will you be arriving, how many days are you staying and for how many people? Sentence23: Oh, a hotel, for sure. Sentence24: What day of the week are you traveling? Question: Who has spoken the sentence 14? (A) User (B) System

Ex Output:

Answer: (A) User