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 leave on Tuesday and need to arrive by 11:30. Sentence2: I need a train that goes to Cambridge and departs from Bishops Stortford. Sentence3: I would recommend the lensfield hotel. It's a 3 star hotel in the south. Would you like more information or do you want to go ahead and book a room? Sentence4: The TR0635 leaves at 09:29, tickets cost 10.10 pounds and the duration of the journey is just 38 minutes. Would you like me to book you a seat? Sentence5: What time does the train depart? What is the price and total travel time? Sentence6: No but I also need a place to stay that should be in the expensive price range and should include free wifi. Sentence7: Nope, wherever you recommend will be great. THanks Sentence8: We have 5 hotels that meet your criteria. Is there a particular area of town you would like to stay in? Sentence9: Yes can you please do that for me? Sentence10: No, that will be all. Thank you! Sentence11: How many people should I book this for? What day? How many days will you be staying? Sentence12: ok, the booking was successful. Reference number is : N9Y9Q569 . can i help with anything else? Sentence13: Enjoy your stay. Sentence14: Book it for 8 people and 4 nights. We will be checking in on Thursday. Sentence15: What day will you be departing and time? Sentence16: Ok, the TR0635 arrives at 10:07. Question: Who has spoken the sentence 12? (A) User (B) System
Example Output: Answer: (A) User

Example Input: Sentence1: Yes, where would you like to go to? Sentence2: Is there an area you'd prefer to stay in? Sentence3: Yes, book that one please. Sentence4: No free parking is not necessary. Sentence5: I prefer a moderate price one. Sentence6: Your room is reserved, ref# UCVH6QPU . Is there anything else I can help you with today? Sentence7: Would you help me book a train for Thursday, please? Sentence8: Can I get the reference number for that booking? Sentence9: There are over 200 trains going to Cambridge on Thursday. Where will you be departing from? Sentence10: Your booking was successful. Your reference number is Z3NAOPSY . Sentence11: Is that for 2 people? And I need it for 5 nights starting thursday. Sentence12: I would like a cheaper hotel. Sentence13: I would like to go to Cambridge Sentence14: That narrows us down to about 19 trains. Do you have a time you would like to leave after or arrive by? Sentence15: Ok I Am going to book a cheaper hotel for you ,have a good day,thank you. Sentence16: There is nothing in the price range you mentioned. Would you be willing to stay at a cheap hotel or an expensive hotel? Sentence17: Not that's it. Thank you so much! Sentence18: In the east. With free wifi, please. Sentence19: Do you need free parking? Sentence20: I would like to leave after 15:45. Sentence21: Yes, please. I am also looking for a place to stay, ideally a hotel with a 4 star rating in the moderate price range. Sentence22: Then in that case, I recommend the TR0209 which departs from Kings Lynn at 16:11 and gets into Cambridge at 16:58. Would you like me to book it for you? Sentence23: I'm sorry, let's get your hotel choice fixed first. There is one cheap hotel - The Cambridge Belfry. It has free internet and parking. Can I book this one for you? Sentence24: I found 3 guesthouses matching that criteria, I would recommend the Carolina Bed and Breakfast. Located in the east, 4 stars, and has free wifi. Will this one work? Sentence25: I will be leaving from Kings Lynn. Sentence26: Ok. Thank you for choosing Cambridge Towninfo Centre. We hope you enjoy your stay. Question: Who has spoken the sentence 13? (A) User (B) System
Example Output: Answer: (B) System

Example Input: Sentence1: TR8842 will get you there at 16:08. May I book it for you? Sentence2: There are 12 options for moderately priced guesthouses, any area preference? Sentence3: Your reference number is RRNTTR7Z . We also have quite a few guesthouses, do you have an area you'd like? Sentence4: Please try 2 nights on Friday and see if that works. For a guesthouse, please. Sentence5: The area doesn't matter. I just need one with rooms available for 3 nights starting on Friday. Sentence6: I would like to leave from london kings cross. Sentence7: I am so sorry, can we start over with the guesthouse? I do need a moderate, but for 8 people. Still arriving Friday for 3 nights. Sentence8: Could we please try a different hotel that is close to The Acorn Guest House? Sentence9: I checked with all 7 guesthouses in the north and none are available for even a one day stay starting Friday. Could we try a different day? Sentence10: I need it to be for 2 people. Sentence11: ok I have one leaving by 05:17, TR5219, would that be fine? Sentence12: Please tell me what town are you departing from and what is your destination? Sentence13: Hi there. Can you help me find a train leaving on Friday? Sentence14: May I have a reference number for that train, please? Sentence15: For the guesthouse, do you have one in the moderate price range that includes free parking? Sentence16: On Friday, I would like to arrive in Cambridge by 16:45. Sentence17: There are over 100 trains available, could you please provide a departure location? Sentence18: Yes, I need it for 8 people. I'm also looking for a guesthouse type hotel with free parking in the moderate range. Sentence19: Well I guess I'm out of luck, unless there are hotels in adjoining towns I could try. Sentence20: Do you have a preference for the number of stars or the area? Sentence21: The Acorn Guest House on 154 Chesterton Road should be sufficient, shall I reserve a room for you now? Sentence22: Yes, please, and I'll need the reference number. Sentence23: It was a pleasure being of service. Enjoy your stay in Cambridge and call again if you need any further assistance. Goodbye! Sentence24: Do you have one that arrives a little closer to 16:45. I don't want to get in too early. Sentence25: For how many people? Sentence26: Your room is booked at acorn guest house for 8 people and 2 nights starting on Friday. Reference number is 3M1I4Q7S . Anything else I can help with? Sentence27: Sorry, we only work with places in cambridge. Sentence28: I was unable to book that room for you. Can we try a shorter stay or a different place perhaps? Sentence29: The booking was still unsuccessful. Would you like to try a different day? Sentence30: No, that should be all I need. Thanks for your help! Sentence31: Sure, please try 2 nights. Sentence32: I could not book a room for that number of nights on those days in that area. Perhaps try a different area? Question: Who has spoken the sentence 11? (A) User (B) System
Example Output:
Answer: (B) System