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 you tell me more about gourmet burger kitchen? Where is it? Sentence2: No, that's all I need for now. you've been very helpful. Thanks. Sentence3: They are in the towns centre. Expensive but worth every penny. Would you like to book a table? Sentence4: How about the postcode and attraction type for Byard Art? Sentence5: Thanks, I'm all done here. Sentence6: I have that table reserved. Your reference number is K94DWSQN . Can I help you with a taxi or hotel room? Sentence7: You're welcome. Have a great day! Sentence8: Unfortunately, we do not have information on several of them. But, Byard Art, Wandlebury Country Park, and Sheep's Green and Lammas Land Park are all free admission attractions. Sentence9: I have booked you a taxi that will get you there by 13:15. The car type is a blue Tesla and the contact number 07664553144. Can I do anything else? Sentence10: Enjoy yourself.You can call us if you need anything else Sentence11: no, not really. What are entrance fees on the 8 attractions? Sentence12: What can you tell me about attractions in the south part of town? Sentence13: I need a taxi from Byard Art that will get us to the restaurant on time. Sentence14: We have 8 attractions in the south part of town. Do you have a preference of type? Sentence15: Yes please, a table for 6 people at 13:15 on Tuesday would be amazing. Sentence16: Postcode, cb21sj, and the type is museum. Is there anything else I may help you with? Question: Who has spoken the sentence 3? (A) User (B) System

Ex Output:
Answer: (B) System

Ex Input:
Sentence1: Yes, that sounds like a good choice. Can you book it for me for 3 people starting Saturday? Thanks Sentence2: I was able to book the hotel for you. The reference number is BTTS9GYC . Is there anything else I can help you with today? Sentence3: There are eight accomodations of the hotel type with free parking. What part of town do you prefer? Sentence4: I need a train from norwich to get to the hotel by 16:30. Sentence5: The Cambridge Belfry is an inexpensive, 4 star option on the west side with free wifi and free parking. Sentence6: The west, please. And can I get free wifi? Sentence7: Okay I have a train tat gets to Cambridge at 15:35. Would you like me to book that for you? Sentence8: It doesn't really matter, just need to get there by 16:30. Sentence9: I want a place to stay. Find me a hotel that includes free parking. Sentence10: I have several available. When do you want to leave? Sentence11: I would like to stay for 3 nights. Sentence12: Sure, I can do that. How many nights would you like it for? Question: Who has spoken the sentence 6? (A) User (B) System

Ex Output:
Answer: (A) User

Ex Input:
Sentence1: In what area would you like to stay? Sentence2: I have 2 options in the south. Both offer free wifi and parking. The Bridge Guest House is 3-star rated. The other is Aylesbray Lodge Guest House which has 4-star rated. Sentence3: You have helped me tremendously. Thank you! Goodbye! Sentence4: Is it a guesthouse? I would prefer a guesthouse. Sentence5: Yes, I am looking for places to go in the southern part of town. Sentence6: Yes, there are 14. Which area were you looking for? Sentence7: OK, then what about the moderate price range? Sentence8: I also need a really expensive place to stay. Sentence9: May I recommend University Arms Hotel, in the centre city? It has four stars, free wifi & parking, and is quite luxurious. Would you like to make a booking there? Sentence10: That sounds good. Can you tell me the entrance fee and phone number? Sentence11: Would you be interested in a museum? The Byard Art Museum is located at 14 King's Way in the south. Sentence12: Sounds good. Can I book a room for one person for two nights starting tuesday? Sentence13: Area does not matter. I do need free wifi. Sentence14: Can you get me a car to pick me up from the museum and take me to the guest house? Sentence15: Booking was successful, the reference number is AQIMZ6OO . Anything else I can do for you? Sentence16: OK, a grey honda should be picking you up at the museum, the contact number is 07694082426. Is there anything else I can help you with? Sentence17: Sure! What time would you like to leave the museum? Sentence18: It was my pleasure! Enjoy your stay! Sentence19: There are no guesthouses matching your requirements. Sentence20: That's all for today. Thanks for your help. Sentence21: Sure thing! It has free admission and their phone number is 01223464646. Is there anything more I can help with today? Sentence22: I am looking for a place in the south side of town. Sentence23: Thank you so much. Have a great trip! Sentence24: I want to leave the museum by 7:30. Question: Who has spoken the sentence 17? (A) User (B) System

Ex Output:
Answer: (B) System