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

Ex Input:
Sentence1: That is all I need for today. thank you. Goodbye. Sentence2: I have 7 available. The first leaves at 17:32, and arrives at 18:32. Would you like me to book that for you? Sentence3: I'll be departing from Broxbourne and I'd like to go to Cambridge. Sentence4: I'm not looking to book at the moment, can I just get the train ID? Thanks! Sentence5: Okay glad I could help. Enjoy your trip. Sentence6: I'd like to find a train that leaves after 17:00 on Saturday. Sentence7: Of course! TR0811 leaves at 17:32, arrives at 18:32, with a duration of 60 minutes. The price is 14.32 pounds. May I assist you with anything else? Sentence8: Absolutely, I need departure and destination information and a time you need to arrive by. Question: Who has spoken the sentence 7? (A) User (B) System

Ex Output:
Answer: (B) System


Ex Input:
Sentence1: Is Aylesbray Lodge a guesthouse? If not, is there a guesthouse that fits? Sentence2: I can help you with that. Do you have a price range? Sentence3: I guess we can go with the moderately priced one. Sentence4: I don't have a preference. I'm just looking for a 4 star hotel that has free wifi. Sentence5: Booking was successful.Your Reference number is : 76HG81V6 . Anything else I can do for you? Sentence6: I need rooms for 8 peoples staying for two nights starting Wednesday. Sentence7: Aylesbray Lodge guest house is moderately priced and has free wifi. Would you like me to make a reservation for you? Sentence8: I'm looking for a hotel in the south part of town. Sentence9: Yes, it is a guesthouse. When would the stay begin and for how long? Sentence10: i have 2 locations that match your requirements, one is cheap, one is moderate. which would you prefer? Question: Who has spoken the sentence 8? (A) User (B) System

Ex Output:
Answer: (A) User


Ex Input:
Sentence1: What is the cost per ticket? Sentence2: Certainly. Where are you departing from? Sentence3: Okay thank you very much. Sentence4: I am so sorry for the misunderstanding. I don't wish to book at the moment. I am all set. Have a great day. Bye. Sentence5: I'm sorry, I may have misunderstood. The train hasn't been booked yet, should I book it for you now? Sentence6: There are eleven trains that will get you there by then, for how many people? Sentence7: The price is $9.80 pound per ticket. Would you like to book it? Sentence8: We are happy to help. Can I assist you with anything else? Sentence9: I's sorry, I meant to say LEAVING from Cambridge on Tuesday, heading to King's Lynn. I need to arrive by 16:00. Sentence10: No, that's everything. Sentence11: How many people will need a ticket for the train? Sentence12: No problem. You have a great day also. Bye. Sentence13: No, that's all, thank you! Sentence14: I need some help finding a train. I'm going to Cambridge on Tuesday. Sentence15: Sure, go ahead. Thank you. Sentence16: Alright, you're booked. Anything else you need from me? Question: Who has spoken the sentence 1? (A) User (B) System

Ex Output:

Answer: (B) System