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

Example Input: Sentence1: Frankie and Bennys serves italian food in the expensive price range, and their postcode is cb17dy. Would you like assistance in making a reservation? Sentence2: Departure time doesn't matter, I just need to arrive at the stansted airport by 21:30 on Thursday, and I need to depart from Cambridge. Sentence3: When are you leaving? Sentence4: I don't need tickets at the moment, but I do need the price and train ID for that 19:40 departure, please. Sentence5: I need a train that leaves Cambridge on Thursday. Sentence6: There are 202 trains leaving Cambridge on Thursday. Would you like to narrow your search by destination and time? Sentence7: Can you tell me the postcode, food type, and the price range? Sentence8: The train id for that is TR9030 and the price is 10.10 pounds. Is there anything else you'd like help with today? Sentence9: I am going to the stansted airport and I need to arrive by 21:30. Sentence10: Yes, the 19:40 train will arrive at 20:08. How many tickets would you like? Sentence11: I'm also looking for a particular restaurant, it's called Frankie and Benny's. Sentence12: Thank you for contacting the Cambridge TownInfo centre. We're here any time you need to get around Cambridge! Sentence13: No, that's all I needed. Thank you. Sentence14: Can I please have one at 19:40. I will get there by 21:30 correct? Sentence15: I was able to find it, what information would you like on it? Sentence16: I have 16 train departures fitting your preferences. They leave every :40 of the hour starting at 5:40 to 20:40, would you like me to book one of these? Question: Who has spoken the sentence 10? (A) User (B) System
Example Output: Answer: (A) User

Example Input: Sentence1: Can you book me 6 seats on that train? Sentence2: Hello, trains depart every 2 hours on the :21's, what day are you hoping to travel? Sentence3: I want to leave on sunday from Cambridge. Sentence4: There are 5 such trains. Do you have a preferred arrival time? Sentence5: You're still not done! Give me the train ID for the train. Sentence6: Sounds good to me. Book it for six people at 10:30 on Sunday. Out of curiousity... how long is that train trip going to take? Sentence7: Ok, the 15:21 going to Stevange on sunday would be great. I'll need the price and train ID as well please. Sentence8: The 15:21 train to Stevenage will take approximately 49 minutes to reach its destination. Is there anything else i can help you with? Sentence9: The prices is 10.24 pounds and the trainID is TR4550. Would you like me to book that for you? Sentence10: Great - I do still need to know the travel time for that train, though. The 15:21 train to stevenage? Sentence11: Yes, can you also let me know the price for that train? Sentence12: I would like to arrive in time for lunch, preferably around 11:00 Sentence13: Thank you for reminding me, your train ID Number will be: TR4550. Sentence14: I want to try food in Cambridge and need to get a train to stevenage that leaves after 14:45. Sentence15: The price is 10.24 pounds. Sentence16: There are 110 restaurants to choose from. What area are you looking to dine in, and what kind of food are you hungry for? Sentence17: Sorry, there aren't any expensive welsh restaurants, but there's an indian place named curry garden. Sentence18: I don't have any for that time frame, every train is running after 12:00. I can book you for one that leaves at 15:21. Is that alright? Sentence19: Find expensive welsh food, or if not welsh, indian, for 6 people at 10:30 Sunday. I need a reference number, please. Sentence20: Your total for 6 tickets is 61.44 GBP, payable at the station, for reference number T0KZHAA5 . Sentence21: Booking was successful. The table will be reserved for 15 minutes Reference number is : MUEIRYK2 . And the train will arrive at 16:10. Sentence22: Not quite yet, could you tell me what the travel time is for that trip? I also am looking for a restaurant to dine at. Question: Who has spoken the sentence 6? (A) User (B) System
Example Output: Answer: (A) User

Example Input: Sentence1: There are quite a lot of different places in the centre. Do you have a particular type in mind such as architecture, college, museum etc? Sentence2: I recommend great saint mary's church. Its postcode is cb23pq and the entrance fee is 2 pounds. Sentence3: The booking was successful. The table will be reserved for 15 minutes.Reference number is : ULSWHGVK, anything else? Sentence4: Yes please book it for 4 people at 11:15 on Monday. Sentence5: absolutely. Look for a white tesla. Its number is 07550780265 in case you need to reach them. Sentence6: I need to leave the church for lunch at the restaurant before the booked time. Sentence7: Hi, I am looking forward to trying some local restaurants when I visit Cambridge next month. Are there any good ones? Sentence8: It's a pleasant to help you. Please call back if you need further assistance in the future. Sentence9: It has been a pleasure talking to you. You have helped me get all I need. Thank you and goodbye. Sentence10: There is wagamama in 36 Saint Andrews Street, would you like me to book for you? Sentence11: Sure, just let me know your departure location, destination and when you are going to travel. Sentence12: Thank you very much. Actually, can you also reserve a taxi for me? Sentence13: Yes, can you tell me some tourist places in town that are in the same area? Sentence14: Yes, I'd like to find a Japanese place in the centre. Sentence15: We have a lot of good restaurants in the city. Do you have a preference in the type of food you want? Sentence16: As long as it is in the same area it doesn't matter, please recommend one. I want its postcode and entrance fee as well Question: Who has spoken the sentence 10? (A) User (B) System
Example Output:
Answer: (A) User