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

Ex Input:
Sentence1: book a table for 6 people at 12:00 on wednesday Sentence2: Are you looking for one in a particular area? Sentence3: I'm looking for parks in Cambridge can you help me? Sentence4: No, area doesn't matter. What park would you recommend? Sentence5: Thank you that is all I need for now. Sentence6: Okay great! I hope you have a wonderful day! Sentence7: Tandoori Palace in the west is a wonderful Indian restaurant. Would you like their phone number or a reservation there, perhaps? Sentence8: I was able to book a table for 6 they will hold the table for you for 15 minutes. The reference number is M4ILDKD4 . Sentence9: The postcode is cb18dw. Sentence10: There are fifteen Italian restaurants in town. Do you want a specific part of town, or maybe a certain price range to narrow down the search? Sentence11: I need help finding a book on italian food Sentence12: No just the postcode please. Sentence13: Thanks. Could you help me find and expensive Indian restaurant perhaps? Sentence14: Cherry Hinton Water Play park in the east is an excellent place to keep cool on hot summer days. Would you like the address? Question: Who has spoken the sentence 4? (A) User (B) System

Ex Output:
Answer: (A) User

Ex Input:
Sentence1: There are 8 trains. The latest one that would get you there on time leaves at 8:48 and arrives 9:38. Would you like me to book a ticket for you? Sentence2: Where are you traveling to and from? Sentence3: Thank you very much for all of your help. Sentence4: I am looking for a restaurant called Galleria. Sentence5: Would it be possible to book the same restaurant at 15:45? Sentence6: The travel time is 50 minutes and it costs 13.20 pounds. Sentence7: Okay you are welcome! Thank you for calling. Sentence8: I have made the reservation for 3 for Sunday at 15:45 at Galleria. Your reference number is DUY4H6WY . Is there anything else I can do for you? Sentence9: I've found Galleria, it is located at 33 Bridge Street in town centre. Would you like to make a reservation? Sentence10: Departure is Peterborough and arrival is Cambridge. Sentence11: Yes. I would also like to take a train on Sunday arriving by 09:45. Can you help me with that? Sentence12: Yes! I'd like a reservation for this Sunday at 16:45 for three people. Sentence13: Please give me travel time and the price, please. Sentence14: I'm sorry, but that time and day is unavailable. Would you like to try another day and/or time? Question: Who has spoken the sentence 2? (A) User (B) System

Ex Output:
Answer: (A) User

Ex Input:
Sentence1: Could you please give me the hotel phone number? I also need to know what type of hotel it is and the area it is in. Sentence2: I would prefer one with free wifi included. Do either of the hotels offer free wifi? Sentence3: OK, great, I'm glad I was able to help you out! Sentence4: Of course, the Gonville Hotel is a hotel in the centre area and the phone number is 01223366611, would you like any more information or to book a room? Sentence5: what kind of hotel is it? Can I have their number? Sentence6: Does the hotel have a restaurant attached to it? Sentence7: I do not have that information available. Would you like me to call them and ask? Sentence8: is there any restaurant close to the Gonville Hotel? Sentence9: That's all I need for now. Sentence10: The Gonville hotel is an expensive 3 star hotel and offers internet. Sentence11: Is there anything else I can do for you? Sentence12: I also need a very expensive hotel with 3 stars can you help me find one? Sentence13: Yes, I can help with that, La Margherita is in the west of Cambridge, located at 15 Magdalene Street City Centre, would you like me to make a reservation for you? Sentence14: The Gonville is in the Centre and La Margherita is in the west. Are you wanting to dine somewhere else? Sentence15: There is 1 in the center and 1 in the south. Which do you prefer? Sentence16: The Gonville is a standard hotel. Their contact number is 01223366611. Sentence17: Could you help me find a restaurant in the Cambridge area called La Margherita? Sentence18: Your table has been booked for 18:30 and your reference number is: 5KN7WD73 . Is there anything else I can help you with? Sentence19: Yes, can you make a reservation on thursday at 19:30 for 4 people? Sentence20: I'm sorry that time and and day is not available at La Margherita, would you like to try an alternative day or time? Sentence21: How about 18:30 then? Sentence22: No thank you. Question: Who has spoken the sentence 10? (A) User (B) System

Ex Output:
Answer: (A) User