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

Ex Input:
Sentence1: How many tickets please Sentence2: I want to go to Cambridge on Wednesday. Sentence3: I can give you all kinds of information as well as book a ticket. Where are you going and when? Sentence4: Have a great stay in town. Goodbye. Sentence5: Train TR9741 arrives at 07:52 and I have booked you for 2,here is your information:Booking was successful, the total fee is 8.8 GBP payable at the station . Reference number is : U44P6DQP . Sentence6: I want you to book it for 5 nights, starting wednesday. 2 people. Sentence7: Where will you leave from? Sentence8: Sure thing, what kind of information do you need? Sentence9: Nope, that's all I need today. Thanks for all your help. Goodbye! Sentence10: Okay that booking was successful. Your reference number is 2VD26230 . Anything else I can do for you? Sentence11: I am looking for information and would appreciate the help. Can you help with a train? Sentence12: Would you like to specify a departure or arrival time? Sentence13: I would need 2 tickets. Sentence14: Can you also look up the hotel Carolina Bed and breakfast? Sentence15: I will be leaving from ely. Sentence16: I need to arrive by 08:45 Question: Who has spoken the sentence 13? (A) User (B) System

Ex Output:
Answer: (B) System


Ex Input:
Sentence1: It's cb12bd. Anything else I can get you? Sentence2: How about something in the south and moderate price range? Sentence3: I'll take Rice House, what's the postcode? Sentence4: There are 3 cheap chinese restaurants in the centre of town: Charlie Chan, Rice House, or Golden House. Would you like me to book any of these? Sentence5: Sure let's try chinese food. Sentence6: I was not able to find any restaurants matching your requirements. Sentence7: I'm still not finding anything. Would you like me to search a different part of town or a different food type? Sentence8: You're welcome. Have a great day! Sentence9: That's all. Thank you. Sentence10: I am looking for a cheap gastropub restaurant in the centre of town Question: Who has spoken the sentence 6? (A) User (B) System

Ex Output:
Answer: (A) User


Ex Input:
Sentence1: It doesn't look like any of them are available for that day. Would you like to try another day or a shorter stay? Sentence2: Yes, I have 3 in the moderate price range Sentence3: Are you looking to stay in a specific area? Sentence4: Not really. Can you see if any of them are available for 4 nights starting from Thursday? It's for 5 people. Sentence5: Please try for 12:30. Sentence6: You're welcome. Sorry I had such a hard time booking for you! Sentence7: I would recommend the Rice House as there food is delicious. Would you like me to make you a reservation? Sentence8: No, that is all I need. Thank you! Sentence9: I sure can. Any preference on time? Sentence10: Well, maybe you'll have better luck finding me a place to stay. I'm looking for something cheap, but still 4-star quality. Sentence11: I have 8 that fit those parameters, would you like any special amenities? Sentence12: Okay I would like to book a table for 5 people at 12:30 on Sunday. Sentence13: Cheap price range, please! Sentence14: Man, we are just not having much luck tonight, huh? Okay, can you see if there are any available for one night? Sentence15: Don't sweat it. Thank you and Goodbye. Sentence16: I was not able to book that either. I am very sorry. Sentence17: Okay please check at 11:30 instead. Sentence18: Sorry, there are no available spots for that day and time. Would you like to try another time? Sentence19: Unfortunately, I can't find any tables available for that day and times either. Would you like to try a different part of town? Sentence20: That was unsuccessful. Would you like to try another time? Sentence21: Any other Chinese restaurants in a different price range? Sentence22: Great! Can you book me a table for 5 on Thursday? Sentence23: I was able to book you at Charlie Chan's. Your reference # is ZWMR0D97 . I also found you a room at Worth House for 1 night. Reference # is 0HEBRY1Y . Sentence24: It was my pleasure. Enjoy your stay! Sentence25: Only other thing I would like is free parking. Sentence26: Hello! Are there any chinese restaurants in the centre? Sentence27: Any of those options would be fine Sentence28: No, I'm sorry, those are the only 3 in the centre, would you like to try a different type of restaurant? Sentence29: There are quite a few in the centre. What is the price range you'd like to stay within? Sentence30: jinling noodle bar is a good fit. Its on 11 Peas Hill City Centre Sentence31: All right, just for fun, let's try one of those (though I expect they will not work either!). Sentence32: Yes let's try making a reservation for 5 people on Thursday at 12:30. Sentence33: No, a moderate restaurant isn't really what I wanted. Can you find a cheap Chinese restaurant for me? Sentence34: If you can book me a table for 5 at one of the other cheap Chinese restaurants at 12:30 (or 11:30) on Thursday, that would be fine. Can you try that? Sentence35: I apologize, there are no reservations at that time. Would you like to try another time at Rice House, or perhaps I can attempt Charlie Chan or Golden House? Sentence36: I have 3 cheap chinese restaurants in the centre of town. The Charlie Chan, The Rice House, and the Golden House. Do you have a preference? Sentence37: When booking your restaurant, I see that the jinling noodle bar is moderately priced. Would that work? Sentence38: Ok. Let's try Charlie Chan instead. Sentence39: No it must be in the Centre. Is there any other chinese place open in the Centre on Thursday? Sentence40: I am sorry. The 11:30 booking for the rice house was unsuccessful. Would you like me to try a different restaurant? Sentence41: Thank you. that is all for today. Sentence42: you're welcome, anything else i can help you with? Question: Who has spoken the sentence 27? (A) User (B) System

Ex Output:

Answer: (B) System