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

Ex Input:
Sentence1: You're welcome. Is there anything else I can help you with? Sentence2: I am looking for a 3 star hotel to stay in. Sentence3: Thank you. What's the travel time? Sentence4: No, that is all I need. Thanks! Sentence5: I reserved Wednesday night at the University Arms Hotel for 5 people. Your reference number is GM90EY8A . Is there anything else? Sentence6: travel time is 47 minutes Sentence7: Lets try just booking it for one night. Sentence8: The hotel should be in the expensive price range. Sentence9: Okay, I've got two that fit the bill. One in the centre of town and one in the south. Do you have a preference? Sentence10: I am very sorry, but I was unable to book a reservation for you. Would you be willing to book a later day or would you be willing to have a shorter stay? Sentence11: I do, yes. I would like to stay in the center of town. I need it to fit five people, for 3 nights, starting Wednesday afternoon. Sentence12: Great! I will need 5 tickets. Sentence13: same day as my hotel booking. Sentence14: You are booked for Train Tr5556, your reference number is JA6WAOJC . Sentence15: I do have a four star hotel in the centre of town, but it is also unable to accommodate your guests for 3 days. Can you adjust your length of stay? Sentence16: Sure I will be able to book you a train, on what particular day will you want to travel? Sentence17: Can we book the other expensive 3 star hotel for one night starting on wednesday? Sentence18: I apologize. One night is not working either. There are guesthouses. Sentence19: How many tickets do you need? Sentence20: There are 6, 3 start hotels in Cambridge. Do you have a preference for the part of town it is located in? Sentence21: No trouble at all, I hope you have a wonderful stay! Sentence22: What about the 4 star hotels? Sentence23: Yes, I also need a train leaving after 18:30 from kings lynn to cambridge. Sentence24: Thank you very much. Question: Who has spoken the sentence 4? (A) User (B) System

Ex Output:
Answer: (A) User


Ex Input:
Sentence1: I hear its a pretty cool place. Can I get their postcode please? Sentence2: Yeah, I need a place to stay on the south side. 4 stars if possible. Sentence3: Postal is cb17sr, they do include internet and they can be reached at 01223240089, can I help with anything else? Sentence4: i am looking for a particular attraction. Its name is called soul tree nightclub. Sentence5: You're welcome! Have a great day! Sentence6: Can you book me a stay at The Aylesbray Lodge? Sentence7: The Soul Tree Nightclub is located in the area of centre. It has an entrance fee of 4 pounds. The phone number is 01223477900. Anything else? Sentence8: The postcode is cb23qf. Do you need anything else? Sentence9: You have a great day as well! Sentence10: Thanks for using our services. Sentence11: Sure! How many are staying, how many days, and what day do you want the stay to start? Sentence12: That was everything, thanks a lot! Sentence13: No I just need the postcode, phone # and if they have internet Sentence14: We have two guesthouses that are 4 stars in the south end, The Aylesbray Lodge Guest House is moderately priced, and Rosa's Bed and Breakfast is in the cheap range. Question: Who has spoken the sentence 12? (A) User (B) System

Ex Output:
Answer: (A) User


Ex Input:
Sentence1: What type of food would you like? There are asian oriental, chinese, european and french restaurants available. Sentence2: I need to find an expensive restaurant in Cambridge located somewhere in the north. Sentence3: The postcode for jesus green outdoor pool is cb43px. I'm sorry I do not have the entrance fee. Is there anything else i can help you with? Sentence4: Yes please, book me a table for one at 19:30 Sentence5: I can book you a table for Tuesday at a Chinese restaurant in the north named the Hot Spot. Shall I do that? Sentence6: I don't have that information I am sorry. Sentence7: Does the other swimming pool say what the entrance fee is? Sentence8: There are two swimmingpool options in the north. I recommend jesus green outdoor pool. Sentence9: Okay. I'm glad I could help. Have a great trip. Goodbye. Sentence10: I'm not particular on the type of food. Could you recommend something and book a table for 1 person at 19:30 on tuesday. Sentence11: There are four attractions in the north. A boat, a park, and two swimming pools. Which would you like? Sentence12: Your reservation has been made. The table will be reserved for 15 minutes. Your reference number is 8JGOXQPX . Is there anything else today? Sentence13: Okay I have the riverboat Georgina. The post code is cb43ax and I have no information on the entrance fee. Sentence14: I am also interested in the boat attraction. What is the entrance fee and postcode for that attraction? Sentence15: I'd love to go swimming. Sentence16: I would like to find a place to visit in the same area as the restaurant. Sentence17: There are many attractions to choose from,what did you have in mmind ? Sentence18: Thanks for your help. That's all I need today. Sentence19: I don't really care, do you have any recommendations? Sentence20: Alright, please give me the entrance fee and postcode for jesus green pool Question: Who has spoken the sentence 10? (A) User (B) System

Ex Output:

Answer: (A) User