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 about the Hundington Marriott Hotel in the west? It gets 4 stars. Sentence2: Is that a 1 star hotel? Sentence3: I do not have a preference on the area. Sentence4: Can you look for a 4 star hotel in the same price range? Sentence5: No thank you that will be all Sentence6: Okay, in what area? Sentence7: Yes, it is called Nusha. Sentence8: Well, if you are sure, I hope you have a great visit! Thank you. Sentence9: Maybe I could help. Do you know the name of it? Sentence10: I would recommend the university arms hotel, which is centrally-located and offers free wifi and parking. Does that interest you? Sentence11: I've located Nusha and it's in the South. It's located in Cambridge Leisure Park on Clifton Road. Sentence12: Ok, thank you. I also need to find a hotel that is expensive. Sentence13: I have an attraction in mind that I need help finding. Sentence14: No. I'm sorry. It's not a 1 star establishment. Is there anything else I can help you with today? Question: Who has spoken the sentence 9? (A) User (B) System

Ex Output:
Answer: (B) System


Ex Input:
Sentence1: No I don't. Pick any of the 33 and give me the address and area, please. Sentence2: I have 33 entries that match your request. Do you have a star rating preference? Sentence3: Yes, what time does that train leave? Sentence4: The alexander bed and breakfast is a cheap 4-star guesthouse in the center, how does that sound? Sentence5: I don't need any specific area, just need a guesthouse that is cheap and includes free parking. Sentence6: Perfect. Thank you. That's all the information I need for Cambridge. You have been a great help! Sentence7: I need to find a Train leaving on Friday from London Liverpool Street and arriving in Cambridge. Sentence8: The TR5015 will get you there by 15:07. Would you like me to book you some seats? Sentence9: I have 10 trains as options. Do you have a time you want to leave or arrive by? Sentence10: Can you tell me what area it's in? And can you give me an address? Sentence11: Please book it for me.I also need a place to stay,a guesthouse with free parking ? Sentence12: The travel time is 88 minutes. Can I help you with anything else? Sentence13: Yes I'd like to arrive in Cambridge by 15:15. Sentence14: We hope you enjoy your stay. Goodbye. Sentence15: No thank you, may I please get the travel time of TR5015? Sentence16: Sure. What area would you like to stay in? Sentence17: Alexander bed and breakfast in found in the center of the town. Their address is 56 saint barnabas road. Sentence18: Thank you, I'm also looking for a place to stay. Can you help me find someplace? Sentence19: It would depart at 13:39 and arrive in Cambridge at 15:07. Sentence20: I have booked the train for you. The reference number is JN7FFTTY . Question: Who has spoken the sentence 5? (A) User (B) System

Ex Output:
Answer: (B) System


Ex Input:
Sentence1: How many train tickets will you need? Sentence2: i'm leaving from peterborough on tuesday and the train should arrive after 15:30 Sentence3: I have a train that leaves at 15:48 and arrives at 16:38. Would that work for you? Sentence4: Just the one, please. Sentence5: Oh, yes, I meant I need to leave after 15:30. I guess that means it will arrive after 15:30, too, ha ha. Sentence6: Can we book the hotel for 1 person and 5 nights starting from Tuesday? Sentence7: The price is 16.50 pounds. Sentence8: You're welcome. Have a nice trip and stay. Goodbye. Sentence9: Please book that train. I'm also in search of a particular hotel. It's called Worth House. Sentence10: I was able to successfully book you at Worth House for 5 nights starting Tuesday. Your reference number is H38MB0WZ . Sentence11: You're very welcome. Have a great trip! Sentence12: Thank you so much that is everything that I need. Sentence13: OK, your train ticket is booked (Ref#WYJFK3C4). As far as the Worth House goes, it's a cheap, 4-star guesthouse on the north side of town. Sentence14: Yes, of course. Where would you like to leave from and when would you like to leave? Sentence15: Thank you! You've been very helpful. I will be sure to ask for you if I need anything else on our trip. Sentence16: Yes. What is the price on that? Sentence17: Just to confirm, did you want to leave after 15:30 or arrive by 15:30? Sentence18: I want to take a trip to Cambridge, but need some help locating a train. Can you provide some information for me please? Question: Who has spoken the sentence 12? (A) User (B) System

Ex Output:

Answer: (A) User