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

Ex Input:
Sentence1: Can I get the travel time and price on the 5:52 one? Sentence2: Tenpin is an entertainment attraction in the south part of town their phone number is 08715501010, and address is cambridge leisure park, clifton way Sentence3: I will need more information to narrow down the results. What day would you like to depart on, and what area is your departure from? Sentence4: Ok, and I also want to find out about an attraction called Tenpin please. Sentence5: TR5348 leaves Ely at 5:35 and arrives in Cambridge by 5:52. The price for a ticket is 4.40 pounds and the ride's duration is 17 minutes. Sentence6: Great, thank you. Sentence7: Departing fro Ely on Wednesday and arriving by 09:30. Sentence8: I'd like train information for cambridge. Sentence9: Thank you so much for the information Sentence10: There are two trains. One arriving at 5:52 and one at 7:52. Would you like me to book one of these for you? Question: Who has spoken the sentence 5? (A) User (B) System

Ex Output:
Answer: (B) System

Ex Input:
Sentence1: Yes, could you tell me their postcode? Sentence2: How much is that cinema's entry fee? Sentence3: I'm afraid that the entry fee for Cineworld Cinema is unknown. Is there anything else I can help you with? Sentence4: I need a taxi from the cinema to the hotel, I want to leave the cinema by 08:15. Sentence5: Yes, I'm also looking for a place to stay. I'll need it to be moderately priced, in the same area as the attraction, and free parking, please? Sentence6: Do they have a room available for 7 people? We're staying 3 nights and checking in Tuesday. Sentence7: That is everything that I need? Sentence8: Thanks, have a great day! Sentence9: The postcode is cb17dy. Is there anything else I can assist you with today? Sentence10: Thank you for using our service today. Sentence11: Have a wonderful time. Sentence12: Booking was successful. Reference number is : Z108ABS3 . Can I help you with anything else ? Sentence13: I'm looking for for a cinema in the south. Can you give me some information on cinema's in the south? Sentence14: there is only one, it's called cineworld cinema Sentence15: bridge guest house is a 4 star guesthouse in the south part of town in the moderate price range with free wifi and parking. Sentence16: Booked you a taxi ride look for a red tesla car contact number is 07746939508. Can I help with anything else? Question: Who has spoken the sentence 1? (A) User (B) System

Ex Output:
Answer: (B) System

Ex Input:
Sentence1: There are 17 options. Is there a specific area that you would like to stay in? Sentence2: I need something in the moderate price range, preferably Eastern European food. Sentence3: Could I also get the car type please? Sentence4: Yes, let's try looking for an Italian restaurant please. Sentence5: No, that's everything I need, thank you for your help. Sentence6: Sure! I'd suggest the Avalon, a moderately priced guesthouse in the north with free wifi and 4 stars. How does that sound? Sentence7: I have booked it for you. Your reference number is UBTSOUBT . Is there anything else I could help you with today? Sentence8: Let's try a guesthouse, please. Sentence9: Can you just give me the postcode, phone number, and address? Sentence10: I have one in the south, moderate price, would you like to book that one? Sentence11: I need a taxi to commute to the restaurant and will need it until I leave at 02:15 and after, can you give me a contact number for the taxi and what car type? Sentence12: There are nine restaurants in the south. What is your price range or type of food you prefer? Sentence13: Oh, sure. Be looking for a grey Volvo to pick you up. Is there anything more I can assist you with? Sentence14: I also need a room, with wifi and in the moderate price range. Sentence15: The Avalon sounds lovely. Would you book it for 3 nights starting Friday for 4 people? Sentence16: Unfortunately, I don't have anything that meets those requirements. Can I try another type of cuisine? Sentence17: The pizza hut cherry hinton is at G4 Cambridge Leisure Park Clifton Way Cherry Hinton postcode cb17dy phone number 01223323737 Sentence18: You're very welcome. Feel free to come back if you have any other questions! Sentence19: The contact number for the taxi is 07992886663. Sentence20: Looking for place to eat in the south Question: Who has spoken the sentence 4? (A) User (B) System

Ex Output:
Answer: (A) User