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

Example Input: Sentence1: Hi, I just had a fight with someone regarding an automobile accident we had and I need to contact the police! Sentence2: I have the parkside cambridge police telephone 01223358966. Sentence3: always welcome. at your service Sentence4: Thank you, Goodbye Sentence5: I'm not sure where you are, but the police postcode is CB11JG. Sentence6: Can I get the zip code or postal code for the area I'm in right now? Question: Who has spoken the sentence 3? (A) User (B) System
Example Output: Answer: (B) System

Example Input: Sentence1: The area doesn't really matter, can you pick a popular me for me? Sentence2: hmm, what about chinese food? Sentence3: You're all set! It's a grey volvo. If you need to contact the driver for any reason, the contact number is 07174343971. Sentence4: Yes, I'd like to take my husband there at 11:30 on Wednesday. Sentence5: Sure I've found an expensive place named yu garden in the east, would you like me to book something? Sentence6: Thank you, you were a great help. That's all I needed. Sentence7: have great day too Sentence8: welcome and have a great day Sentence9: Booked! The table will be reserved for 15 minutes. Your Reference number: 5R5C75ZP . Sentence10: Would you like me to reserve it for you. Sentence11: Sure. What time would you like to leave? Sentence12: I'd also like to book a taxi from the pool to the restaurant that arrives by the reservation time. Sentence13: Parkside Pools is centrally located and their address is Gonville Place. Is there anything else I can help you with today? Sentence14: i am looking for a swimming pool. Sentence15: I'll be going now. Good-bye Sentence16: As long as it arrives by 11:30 it doesnt matter when it leaves Sentence17: Sure, which part of town are you looking for? Sentence18: I'm looking for a sri lankan restaurant. Sentence19: Yes, please. I'll need the contact number and car type. Sentence20: I'm sorry. I'm not able to find anything that meets your criteria. Would you like to try a different type of food? Question: Who has spoken the sentence 17? (A) User (B) System
Example Output: Answer: (B) System

Example Input: Sentence1: Sure, it is a 4 star guesthouse located at 154 Chesterton Road. The postcode is cb41da and you can call them at 01223353888. Is there anything else you need? Sentence2: What are the prices like there? Sentence3: Thank you for contacting Cambridge TownInfo centre. Goodbye! Sentence4: Thank you, I am also looking for a hotel on the north side. Sentence5: Yes, a taxi, I want to leave the attraction and go to the hotel by 22:00 Sentence6: Any area is fine. Do you have a favorite? Maybe we can check that one out. Which one do you like? Sentence7: Acorn Guest House is a moderately priced hotel. They provide internet and parking. Would you like to book something? Sentence8: Broughton house gallery was great the last time I was there and I think you'll enjoy it as well. It even has no entrance fee. Sentence9: I like a guesthouse in the moderate price range. Sentence10: thats all I needed, thanks Sentence11: I am showing a listing of 23 different museums in various areas of cambridge. Do you have a specific area you would like to visit? Sentence12: There are 5 hotels on the North side. Are there any specific accommodations you were looking for? Sentence13: Could you give me the postcode, phone number and star rating of the guesthouse? Sentence14: acorn guest house would be nice for you Sentence15: You're booked in a black Audi, contact number 07701261182. Can I help you with anything else today? Sentence16: Awesome, can I get the phone number, postcode and area for that? Sentence17: The Broughton House Gallery is in Centre. The phone number is 01223314960, and the postcode is CB11LN. Sentence18: Hello, I'm looking for an museum. Question: Who has spoken the sentence 3? (A) User (B) System
Example Output:
Answer: (B) System