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

Example Input: Sentence1: I get into town Monday. Is the guesthouse expensive? Sentence2: There is one option. It is the university arms hotel. Sentence3: I want to leave at 15:15 and go to the cambridge chop house Sentence4: I've found 2 hotels that fit your criteria. One is called Gonville Hotel and the other is University Arms Hotel. Sentence5: I don't really care. It's for a business meeting so just need to make sure it's expensive so it's nice. Sentence6: No, we don't have any guesthouses that are expensive. Sentence7: I sure can. If there is a specific type of food you are interested in that would help to narrow down the possibilities. Sentence8: No the price range is fine. Just make sure it is in the same area as the restaurant. Sentence9: I was able to book your table. Your reference number is FFFW4HLE . Sentence10: What day would you be arriving at the guesthouse? Sentence11: What time do you want to leave or arrive by and what is your destination Sentence12: We have two guesthouses in centre that are on the cheap side. The alexander bed and breakfast has a 4 star rating. Would you like that one? Sentence13: I am looking for a restaurant that is in the centre of city and is expensive. Can you help me with that? Sentence14: There are plenty of hotels and guesthouses that would do the trick in that area. Do you have a price range? Sentence15: Great, how many people do you want to book at Guesthouse and for how many days? Sentence16: You are booked. Your reference number is PWFVG1HP Sentence17: Sure thing. Their phone number is 01223366611 . Is there anything else I can help you with? Sentence18: Excellent. Can I get the phone number for the Gonville Hotel? Sentence19: There are 4 people. I would like it to be on Monday and arrive by 15:15. Sentence20: I needed it to be in that side. anyway thanks for your help Sentence21: You're welcome! Have a good day! Sentence22: It is priced cheap. Would you like a different price range? Sentence23: I have a business luncheon this week and need a place to host, preferably in the centre of the city. Sentence24: Okay, I want a reservation for 4 people starting monday, for 3 nights total Sentence25: Yes please just book that hotel for me. Sentence26: I am sorry we have no guesthouse hotels in the centre of town. Would you prefer another location? Sentence27: Are there any hotels like that in that area? Sentence28: Are you sure you would not prefer another side of town? Sentence29: I'd like it to be expensive. Sentence30: Great, I am also looking for an expensive range guesthouse in the same area. Sentence31: Yes, I also need the reference number. Sentence32: Sorry, I actually want an expensive hotel with parking in that same area Sentence33: Thanks. Now I will be needing a taxi please. I want to depart from the hotel Sentence34: Booking completed! Booked red lexus and their contact number is 07732008521. Sentence35: I need a guesthouse that is in the same area as the restaurant, centre, and has free parking, too. Sentence36: No that is all I needed. Thanks! Sentence37: Thanks so much! Sentence38: Is there anything else I can do for you? Sentence39: First I'll need to know how many are in your party, and what day and time you'd like? Sentence40: The Cambridge Chop House would be my recommendation, would you like me to book it for you? Question: Who has spoken the sentence 25? (A) User (B) System
Example Output: Answer: (B) System

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: You're welcome. Enjoy your stay Sentence2: That sounds good, I need the address, phone number and postcode. Sentence3: So sorry we have no multiple sports in the centre of town. Sentence4: I am looking for a place that has multiple sports in the centre of town. Do you have any suggestions? Sentence5: Yes they do have free parking. Would you like me to book a room for you at the Belfry? Sentence6: Yes, there are a few. I personally like Downing College on Regent Street. It is free. Sentence7: The address is regent street postcode cb21dq and the phone is 01223334860. Sentence8: I would prefer the cheaper one. Can you tell me if they offer free parking? Sentence9: No, thank you. That is everything I needed. Sentence10: Will it just be you staying or do I need to book other guests as well? Sentence11: Yes, I need you to go ahead and book that for me. I would like to stay for two nights starting on Sunday. Sentence12: Actually, just send me the address. Thank you. Sentence13: How about a college in the centre of town? Sentence14: Great, that's helpful, thanks. Can you also help us find a hotel? We'd like to stay on the west side, and we really dislike guesthouses. What can you recommend? Sentence15: I'm not quite sure yet, could I get the address there please? Sentence16: The address is back lane, cambourne. Can I get you anything else? Sentence17: the cambridge belfry is on back lane, cambourne, cb236bw. Their phone number is 01954714600. Can I help you with anything else? Sentence18: We have two hotels on the westside, the cheap Cambridge Belfry and the expensive Huntingdon Marriott. Which would you like? Question: Who has spoken the sentence 2? (A) User (B) System
Example Output:
Answer: (A) User