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

Example 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
Example Output: Answer: (B) System

Example Input: Sentence1: We have three places that serve international cuisine that you should like. Do you prefer East or Centre? Sentence2: Yes, that would be great. Can you book a table for 4 people at 11:30 on Sunday? Thanks Sentence3: Can you help me find a corsica restaurant? Sentence4: I also need a train that will arrive by 18:15. Sentence5: TR7786 can have you there by 17:51. It costs 23.60 pounds. Sentence6: Sure, which stations are you traveling between? Sentence7: Then can you find me one that serves international food? Sentence8: The Centre is fine. I need a table for brunch on Sunday. Sentence9: I was able to book your party of 4 into Bloomsbury Restaurant on Sunday at 11:30 , Reference: 4ni28yk5 . Can I assist you further today? Sentence10: There is no restaurant serving corsica food in the town. What is another type of food you would like me to search for? Sentence11: What is the travel time? Sentence12: Goodbye, enjoy the rest of your day! Sentence13: The trip takes 51 minutes. Would you like me to book that train for you? Sentence14: I recommend the Bloomsbury Restaurant. It's located at Crowne Plaza Hotel, 20 Downing Street. It's a moderately priced restaurant. Can I book this for you? Sentence15: not now. that is all i needed. have a good day Sentence16: I'll be leaving Cambridge on Monday and I'd like to arrive to London Kings Cross by 18:15. Is there anything available? What time will it leave? Question: Who has spoken the sentence 7? (A) User (B) System
Example Output: Answer: (B) System

Example Input: Sentence1: Monday at 7:00 p.m. Sentence2: Rosa's is a cheap place to stay and the phone number is 01223512596! Sentence3: Thank you! Could you help me find an indian food restaurant in the same area as the hotel? Sentence4: I don't care about price range. Sentence5: There are two guesthouses that fit your needs. Is there a certain price range you would like? Sentence6: May I please get a phone number for the reservation? Sentence7: Happy to be of service. Have a wonderful day! Sentence8: Okay so it has free parking. What is the price range? Also could i receive the phone number? Sentence9: Yes I have white Lexus picking you up at 16:15. The contact number for the taxi is 07932069775. Anything else? Sentence10: Before that, can I please have the address, phone number and postcode for the restaurant? Sentence11: Sure, the phone number is 01223412299. The address is 64 Cherry Hinton road, Cherry Hinton, and the postcode is cb17aa. Sentence12: Yes. What information do you need from me? Sentence13: I need a taxi to get there and will leave the restaurant by 16:15. Can you get me the contact number and car type? Sentence14: Sounds great! That is all I need. Thanks. Sentence15: I need a hotel in Cambridge that is rated 4 stars be located in the south area. Sentence16: There is one Indian restaurant in that area - Taj Tandoori. It is expensive. Would you like me to book a table for you? Sentence17: What day and time would you like? Sentence18: How about rosa's bed and breakfast? It has internet and parking. Question: Who has spoken the sentence 17? (A) User (B) System
Example Output:
Answer: (B) System