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

Ex Input:
Sentence1: Is there any Indian food on the west side of town. Sentence2: You're welcome. May I help with another query? Sentence3: Cocum is located at 71 Castle Street City Centre and their phone number is 01223 366668. Their price range is expensive. Sentence4: The price range doesn't matter. Sentence5: There are 6 Indian restaurants in the west part of town. What price range do you have in mind? Sentence6: There are no Hungarian restaurants in the west of town. Would you like to change your query? Sentence7: I would like a Hungarian restaurant in the west of town. Sentence8: Yes, but just for one. Sentence9: Would you like the name, address and phone number of a few of them? Sentence10: Goodbye. Sentence11: Thank you! Sentence12: Nope, I'm good. Thanks again. 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: Uh, let's set it up for a park visit. I'll need the address and is there an entrance fee? Sentence2: Thanks, that's great! I'm also looking for a train on Thursday from Kings Lynn. Sentence3: Happy to be of service. Thank you for using Cambridge TownInfo centre. Have a wonderful day! Sentence4: The address is milton country park, milton. Entrance is free! Sentence5: That should work for us, I will need tickets for 7 please and the reference number. Sentence6: The booking was successful. The total fee is 68.6 GBP and your reference number is 8TU1PRQV . Can I help you with anything else? Sentence7: Would you prefer to go boating, swimming, or to visit a park? Sentence8: Yes correct to cambridge, and I would like to arrive by 20:45. Sentence9: That would be to cambridge correct? I have 19 for that day. Did you have a certain time you wished to leave or arrive? Sentence10: There are 4 attractions in the north. Do you want to specify an attraction type? Sentence11: I am looking for places to go in town in the north. Sentence12: The latest train that leaves at 19:11 and arrives at 19:58 for 9.80 pounds. Would you like to book it? Sentence13: No I don't care. Sentence14: Nope, that's all, thanks. You've been most helpful today. Most helpful, indeed. Question: Who has spoken the sentence 3? (A) User (B) System

Ex Output:
Answer: (B) System