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

Example Input: Sentence1: I'm sorry, but we just reserved your table. There is no car type. But since you ask, did you need a taxi? Sentence2: Thanks, that's all I need today. Goodbye! Sentence3: Could i please get the phone number and address? Sentence4: good day and thanks for using our services Sentence5: I only have one restaurant in the north for European food, but they have amazing food. It's called City Stop Restaurant. They are expensive but so worth it! Sentence6: book a table for 2 people at 13:15 on tuesday. Sentence7: I would like the north please. Sentence8: I am thinking I would like to try some european food while I am in town. Sentence9: Yes I need a taxi that will take me between the two places and need to arrive by 13:15. Sentence10: Okay. I have a taxi booked. It will be a yellow bmw and the contact number is 07135918917 Sentence11: The Botanical Gardens at Cambridge University are a favorite destination. The entrance fee is only 4 pounds. Sentence12: What is the car type, please thank you Sentence13: There are several to choose from, in which part of town would you like to concentrate? Sentence14: Sure, the phone number is 01223336265. The address is bateman street. Can I do anything else for you? Sentence15: Yes, I would like the information on parks that are located in the centre please. Sentence16: Your booking was successful! The table will be reserved for 15 minutes. Reference number is : ZLRYLH3O . Question: Who has spoken the sentence 13? (A) User (B) System
Example Output: Answer: (B) System

Example Input: Sentence1: How about the Ashley Hotel? It is on the north side of town, has 2 stars, free wifi and parking, and is moderately priced. Sentence2: Is that a 2 star hotel? Sentence3: Are there any available for less than $200 a night? Sentence4: Unfortunately, the rooms are unavailable for that day and time. Can I try a shorter stay for you or possibly a different day? Sentence5: Of course! The reference number is QZYSOMAW and the address is 74 chesterton road. May I help with anything else? Sentence6: No, it has 4 stars Sentence7: Can you make a reservation for 6 people for 3 nights starting on Wednesday. Sentence8: Yes, I was able to successfully book you for two nights. Is there anything else you need? Sentence9: The only 2 star hotels are in the north or the east. Do you mind staying in one of those areas? Sentence10: Nope, that's all I need. Thanks for your help! Sentence11: Can I have the reference number and address please? Sentence12: How about for 2 nights? Sentence13: We're glad to be of service, and please do not hesitate to contact us if you need more help while you're in Cambridge! Sentence14: Yes that would be fine with me Sentence15: There are several. Alexander Bed and Breakfast is cheap and is in the Centre. Would you like me to book that? Sentence16: Let's try a hotel type with free parking in the centre of town with a star of 2. Sentence17: Are there any rooms available in hotels with free parking? Sentence18: how about for 2 nights? Sentence19: Yes. Do you have a preference for the hotel's area or price range? Sentence20: I'm sorry. I have no 2 star hotels in the center of town. However, I have some in other parts of town. Would you care to modify your search criteria? Question: Who has spoken the sentence 10? (A) User (B) System
Example Output: Answer: (A) User

Example Input: Sentence1: OK, you're booked on TR7062, leaving at 16:40 and arriving by 17:08, reference number 1MSVTP4G . The price will be 10.10 at the station. Can I help you with anything else? Sentence2: Okay. Thank you very much. Sentence3: Thank you, have a nice time. Sentence4: I'm looking for a train that leaves from cambridge after 15:45 Sentence5: Can I have their post code and phone number please? Sentence6: The earliest train after 15:45 leaves at 16:40. Would you like me to book you a seat? Sentence7: Is there anything else I can help you with? Sentence8: Yes, I was wondering if you could help me find ou abou an attraction called gonville and caius college. Sentence9: I'd like to travel to stansted airport. Sentence10: There are many trains, please tell me a destination to help narrow it down. Sentence11: Yes, I would like to book one seat that leaves on Sunday. Please provide the price, arrival time and train ID. Thank you. Sentence12: No I think that should do it. Thanks. Goodbye. Sentence13: Gonville and Caius College is in the centre of town and entrance is free. Is there anything else you would like to know? Sentence14: Sure there phone number is 01223332400 and postal code is cb21ta. Question: Who has spoken the sentence 8? (A) User (B) System
Example Output:
Answer: (A) User