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

Ex Input:
Sentence1: No but I do need a train that will depart from peterborough and should go to cambridge. Sentence2: When would you like to depart or arrive? Sentence3: The ticket price is 16.50 pounds. Would you like me to book that for you? Sentence4: No than kyou. Sentence5: And how much is a ticket? Sentence6: The duration of the train ride is 50 minutes. Sentence7: TR8509 will leave Peterborough at 15:19 and arrive in Cambridge at 16:09. Would you like to book tickets on this train? Sentence8: Ok! Have a great day! Sentence9: Yes, there is. It's located in the centre area and has free admission. Would you like more information about it? Sentence10: Are you sure that there is absolutely nothing else that you need? Sentence11: No, I think I'll hold off on that. That's it for today. Thanks for your help. Have a great day. Sentence12: maybe, what's the duration of the train ride? Sentence13: I need the attraction type and address. Sentence14: I'd like to depart after 15:00 on thursday no preference on arrival. Sentence15: The Scott Polar Museum is a museum located on Lensfield Road. Would you also like their phone number? Sentence16: A friend told me about an attraction called the scott polar museum. Question: Who has spoken the sentence 8? (A) User (B) System

Ex Output:
Answer: (A) User

Ex Input:
Sentence1: Not in that criteria, perhaps another area or price range? Sentence2: I'm booking you a table for 5 at 11:00 Saturday at Charlie Chan. What name should I place this under? Sentence3: I want to eat chinese food in the centre. Sentence4: Yes, please try J Restaurant. Asian Oriental food sounds good. Sentence5: I was able to book you into the J restaurant and your reference number is 87G7FWZM . Sentence6: Thank you for your help! That will be all. Good Bye. Sentence7: Booking was unsuccessful. Would you like to find another restaurant? Sentence8: I don't know what I was thinking earlier, we actually have a lot of cheap restaurants in the centre. J Restaurant serves Asian Oriental. Should we try that? Sentence9: How about Charlie Chan? It is a cheap chinese restaurant in the centre. Sentence10: You're welcome, have a great day! Sentence11: Are there any in the same area and price range but not Chinese? Sentence12: Sure. I would like to book a table for 5 people at 11:00 on Saturday. Sentence13: Are there any other cheap restaurants in the area? Sentence14: Book it for XXXX, can I please get a reference number? Question: Who has spoken the sentence 2? (A) User (B) System

Ex Output:
Answer: (A) User

Ex Input:
Sentence1: Sure, I'd like to suggest the cafe jello gallery. Is that everything? Sentence2: I have booked Finches Bed & Breakfast for you starting Sunday for 4 nights for 8 people. Your reference number is H7WHFPQT . Is there anything I may assist with? Sentence3: I would like free parking and wifi for sure. Preferably on the west side with 4 stars, too. Sentence4: That sounds wonderful. Could you reserve our rooms? We'll be a party of 8, and we'd like to arrive on Sunday. I think we'll be staying 4 nights. Sentence5: I am looking for a place to stay. Sentence6: Unfortunately, I could not find a park in the west. Can I try a different area? Sentence7: I'd suggest Finches Bed and Breakfast. It's a guesthouse in the west area with free internet and parking. Sentence8: You're welcome, have a great day as well. Sentence9: May I please get their address and phone number? Sentence10: The Cafe Jello Gallery is at cafe jello gallery, 13 magdalene street and their phone number is 01223312112. What else can I do for you? Sentence11: No, you've been so helpful. Thank you so much! Have a great night. Sentence12: Thank you, yes, I'd like to also find a nice park to visit while I'm in town. Can you see if there is one near my hotel? Sentence13: No, but can you try to find a museum in the west please? Sentence14: Sure. Do you have a preference as to location, price, or amenities? Question: Who has spoken the sentence 10? (A) User (B) System

Ex Output:
Answer: (A) User