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

Example Input: Sentence1: Ok, how about Chinese food? Still expensive and in the north please. Sentence2: I also need to book a taxi between the hotel and restaurant. I need to arrive by 19:45. Sentence3: Ok, you are booked for a 19:45 arrival time, the taxi is a white audi. Is there anything else? Sentence4: Saigon city serves Asian oriental in the north part of town. Sentence5: What time do you need to leave by? Sentence6: We want to find a restaurant that serves unusual food. Sentence7: Can you pick the best swimming pool and get me the postcode and phone number please? Sentence8: Awesome. Now can you tell me if there is a swimming pool nearby the restaurant? I love to swim after egg rolls! Sentence9: There are two in the north; Jesus Green Outdoor Pool and Kings Hedges Learner Pool. Would you like the location of either of those? Sentence10: Contact number is 07625009528 Can I help you with anything else? Sentence11: I was able to make a booking for the hotpot. You reservation number is 55CAP7FC . Sentence12: Let me have a reservation at Hotpot on Friday, thank you. Sentence13: That's pretty offensive to call Asian oriental unusual. I'm looking for a restaurant that serves food labelled as unusual. Sentence14: Ok, how many people and what time? Sentence15: I just need it to arrive by the time the restaurant was booked. Sentence16: Can I get the contact number for the taxi as well, please? Sentence17: I have no restaurants that list there food as unusual, do you have any other preferences? Sentence18: I'm going to recommend the kings hedges learner pool located at jedburgh court, kings hedges the post code is cb42xh. The phone number is 01223353248. Sentence19: 7 people for the taxi. Sentence20: 7 people at 19:45 on friday. Sentence21: No thank you. Sentence22: How many people are traveling? Sentence23: Have a nice day. Sentence24: No, just please make sure the food's unusual, located in the north and expensive. Sentence25: Do you have a particular type of food you'd like to try? Sentence26: yes, there's a place called the hotpot Question: Who has spoken the sentence 5? (A) User (B) System
Example Output: Answer: (B) System

Example Input: Sentence1: Yes, free internet is included at The Cambridge Belfry. Sentence2: Great, I'd like to book at room at The Cambridge Belfry. Sentence3: The cambridge belfry matches those requirements. Sentence4: I can book your room now. Thank you so much Sentence5: I am looking for a 4 star hotel that has free parking. Sentence6: Does it have free internet? Question: Who has spoken the sentence 5? (A) User (B) System
Example Output: Answer: (B) System

Example Input: Sentence1: Hakka and The Hotpot are both expensive Chinese restaurants on the north side of town. Would you like a table at one of these? Sentence2: You're welcome! Thanks for using our services. Sentence3: Yes please book the train for 23:29. Sentence4: Unfortunately, I'm not seeing any Vietnamese restaurants in the north. Would you like to try a different area or type of cuisine? Sentence5: There are 2 trains that fit this request. One at 21:29 and another at 23:29. Did you want me to book one of them for you? Sentence6: I am looking for a Saturday train departure from Cambridge Sentence7: That'll be everything. Thank you! Sentence8: How many tickets do you need? Sentence9: How about a Chinese restaurant. Ideally expensive. Sentence10: No, but I need to find a restaurant. It should serve vietnamese food and it should be in the north. Sentence11: I don't need a booking, but can you tell me the train ID, travel time, and arrival time of that train? Sentence12: I've booked that for you. The reference number is ZAV4B1D8 . What else can I help you with? Sentence13: What destination would you like me to look for? Sentence14: I'm hoping for a train to bishops stortford after 21:15. Sentence15: I'd like to reserve a table for 3 at The Hotpot for 10:00 Saturday. I'll need a reference number as well. Sentence16: TR0123 is the train ID. It leaves at 23:29 and arrives at 24:07. Did you need any more information about the train? Question: Who has spoken the sentence 10? (A) User (B) System
Example Output:
Answer: (A) User