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

Ex Input:
Sentence1: yes that works. I also need a taxi to get between the guest house and restaurant. Sentence2: I'd also like the hotel type and internet status, please. Sentence3: found it, de luca cucina and bar is modern european centre of moderate price range. phone number is 01223356666 code,cb21aw and is located on 83 Regent Street Sentence4: Thank you, I want to book a table for 8 people at 11:30 on saturday. Sentence5: No just need the address and do they have free internet? I am also looking for a nice place to eat called the de luca cucina and bar Sentence6: It is a guesthouse, cheap, wifi and parking. Would you like to reserve it? Sentence7: Worth House has internet and parking. Will that work for you? Sentence8: Ok, a black bmw will pick you up in time to arrive for your reservation at de luca cucina and bar. The taxi's number is 07228077167. Anything else? Sentence9: Found it! It is located in the north and it is cheap. Would you like to make a reservation? Sentence10: Thanks. What was the address for Worth House? Sentence11: warkworth terrace is the address, anything else? Sentence12: Thank you, please contact us again if you'd like additional assistance. Have a great day! Sentence13: I'm looking for a hotel named Worth House Sentence14: That is all thanks for your time. Sentence15: Is that a hotel or guesthouse? And, do they have free internet? Sentence16: I was able to book it the reference number is 3EZLDF7Q . Question: Who has spoken the sentence 8? (A) User (B) System

Ex Output:
Answer: (A) User

Ex Input:
Sentence1: yes book for 4 people and 5 nights from sunday Sentence2: I hope you have a great stay. Goodbye. Sentence3: I would prefer a college in town centre. I'll need the phone and address also. Sentence4: I am also looking for a place to stay in the centre. Sentence5: No that will be it thank you for your help. Sentence6: Booking was successful. Reference number is : 7RA903FR . Can I help with anything else today? Sentence7: Ok, there are 13 to choose from. Some have entrance fees. Sentence8: I'm looking for an attraction in the category of college in the center of town Sentence9: I have the cityroomz hotel in the center. Would you like me to make a booking for you? Sentence10: Moderate range please. Sentence11: What price range you would like? Sentence12: Sure thing, Downing college is located at regent street and phone is 01223334860 anything else I can assist with? Question: Who has spoken the sentence 11? (A) User (B) System

Ex Output:
Answer: (B) System

Ex Input:
Sentence1: I have 13 trains that would work. They depart every hour, starting at 11:32. What time would you like to arrive in Cambridge? Sentence2: I can help you with that, how many tickets do you need? Sentence3: I want the restaurant to be expensive. Sentence4: I just need information right now. Would you choose a train leaving after 11:00? I need the train ID, arrival time and price, please. Sentence5: I need to take a train, I want to leave on Wednesday after 11:00. Sentence6: There are six options but my personal favorite is saffron brasserie, would you like a booking or just more information? Sentence7: Thank you , can you help me find an Indian restaurant in the centre? Sentence8: From broxbourne to cambridge. Sentence9: sure, what is your destination? Sentence10: There are several Indian restaurants to choose from, are you looking for a certain price range? Sentence11: Arrival time doesn't matter as long as I leave after 11:00. Sentence12: I trust your opinion. Please book a table at Saffron Brasserie for 5 people at 15:15 on Wednesday. Sentence13: Your reservation was made at the saffron brasserie. Your reference number for your reservation is 0B8PEDPB . Sentence14: Thanks for using the Cambridge TownInfo Centre. Goodbye! Sentence15: TR5953 arrives by 12:32 and costs 17.90 pounds per ticket. The travel time is 60 minutes Sentence16: Thank you so much. That was everything I needed! Question: Who has spoken the sentence 7? (A) User (B) System

Ex Output:
Answer: (B) System