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

Input: Consider Input: Sentence1: i have booked that for you. your reference number is xhrx4ig7 . Sentence2: I'm confused. Should I look for a restaurant? Sentence3: Will you be leaving from Cambridge. Sentence4: That is helpful.Thanks Sentence5: Yes that will work. I need to book it for 2 people. Sentence6: yes i will be leaving from Cambridge. Sentence7: I would like to leave after 10:30. Sentence8: Okay the booking was successful. The reference number is HZ6B38TH . Sentence9: I'm also looking for a train. I'll be traveling back to Broxbourne on Friday. Sentence10: TR7372 leaves Cambridge at 11:01 and arrives at broxbourne by 12:01, would that train work for you? Sentence11: Yes please. It'll be for 4 nights. Sentence12: In order to book, can you tell me the number of guests, number of nights and the day of the week you want to start your stay? Sentence13: No, I'm sorry. That's all for now. Thank you for all your help. Sentence14: To be clear do you need me to fine you a place to eat? Sentence15: I would like to find out information about a hotel called Warkworth House. Sentence16: Can you find me a expensive cafe to eat at once i get off the train? Sentence17: I need to book it to 2 people for 4 nights starting from wednesday. Sentence18: Warkworth house is a guesthouse in the east area. It is moderate pricing with 4 stars. It offers free parking and internet. Would you like a reservation? Sentence19: What time would you like to leave around? Sentence20: I actually don't need a place to eat. Thank you, that is all. Sentence21: Thank you for using this service good bye Sentence22: What type of food would you like? Sentence23: Thank you. Can I get a reference number for the booking? Sentence24: I will go ahead and book your room. Question: Who has spoken the sentence 8? (A) User (B) System

Output: Answer: (A) User


Input: Consider Input: Sentence1: How about an expensive restaurant that serves British food? Sentence2: Cineworld sounds perfect. What's their postal code? Sentence3: The postal code is cb17dy. Can I get you anything else? Sentence4: There are six expensive British restaurants in Cambridge. Do you have a preferred section of town? Sentence5: Have a good time! Sentence6: It's all new to me. Could you recommend one? Sentence7: Sure thing, we have the cineworld cinema located at Cambridge leisure park, Clifton way. Sentence8: Absolutely, I recommend the Cambridge Chop House at 1 Kings Parade in the centre of town. This is a highly recommended British experience by locals and tourists a-like. Sentence9: No, that'll be all. Thank you for all of your help today. Sentence10: I am sorry but there are no restaurants matching your requests. Would you like me to search for a different food type? Sentence11: Great. Could you also help me find a cinema in the south of town? Sentence12: Hello, I am trying to locate a restaurant that serves northern European food, and I would prefer a more elegant setting. Question: Who has spoken the sentence 3? (A) User (B) System

Output: Answer: (B) System


Input: Consider Input: Sentence1: Unfortunately, I could not find a barbecue restaurant using your criteria. Is there another type of restaurant you would like to consider? Sentence2: If this guesthouse is available please book it for me. By the way, what is the price per night? Sentence3: I need a 3 star hotel in Cambridge, that offers a guesthouse, can you book it for me ? Sentence4: Great can you book that for 1 person for 3 nights starting friday? Sentence5: Before I book, is the guesthouse located in the south part of town and at what price range? Sentence6: Neither of the restaurants in the centre are available at that time. Would you like to try a different time? Sentence7: I do not have the prices, what day would you like to stay, for how many nights, and how many people? Sentence8: That is it for today. Thank you so much for your help. Good bye. Sentence9: thank you for booking that and the reference number Sentence10: Yes please, I need to book a taxi to the restaurant from the hotel for the dinner reservation. Sentence11: Thank you for using Cambridge TownInfo centre. Please remember us for all of your future travel needs. Sentence12: There are no modern European restaurants in the North but there are 2 in the town center. Do you want to book one or change type of restaurant. Sentence13: I was able to book restaurant alimentum reference number is HCY10A2Z Sentence14: How about 10:00 on the same day as before? Sentence15: Yes, I am also looking for a barbeque restaurant in the same area and price range as my hotel. Sentence16: I'd like to book one for the same group of people at 11:00 on the same day as before. Sentence17: Yes, hamilton lodge is located on 156 chesterton road. Sentence18: The hotel is found in the Northern part of town and it is in the moderate price range Sentence19: Is there anything else I can help you with today? Sentence20: Ok, a grey honda will pick you up at the hamilton lodge in time to arrive at restaurant alimentum for your 10:00 reservations. Taxi contact number is 07242149665. Anything else? Sentence21: Yes, are there any modern european restaurants in that area? Sentence22: i have your room all reserved. The reference number is R1E3QVGT . Is there anything else I can assist you with? Question: Who has spoken the sentence 1? (A) User (B) System


Output: Answer: (B) System