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

Sentence1: Thanks again for helping to find me a place to eat. I have the reference number T44KC552. Sentence2: I am looking for a Cuban food place, in the east. Sentence3: No, thank you. You have been very helpful. Have a great day. Sentence4: Here is the address and the phone number: 7 Barnwell Road Fen Ditton, 01223244955. Sentence5: Yes, try that. Sentence6: Can you check again? The only thing I'm interested in is a moderately priced Cuban restaurant in the east. Sentence7: I apologize booking was unsuccessful. Would you like me to try Rajmahal Sentence8: Do you have a moderately priced Indian restaurant in the east? Sentence9: Yes I have 2. Curry Prince and Rajmahal. Sentence10: I will try the Curry Prince. Can you book a table for 4 people on Monday at 17:30? Sentence11: I have you at Rajmahal, Reference number is : T44KC552 . Anything else you need? Sentence12: I am sorry but there aren't any restaurants matching your criteria. Can I help you with something else? Sentence13: Enjoy your meal at the rajmahal. Have a great day. Sentence14: I apologize I am still not showing any restaurants that meet your criteria. Is there another type of cuisine you would prefer? Question: Who has spoken the sentence 7? (A) User (B) System
Answer: (B) System

Sentence1: No I have nothing in particular in mind. Sentence2: Thanks. I am also looking for somewhere to eat near the museum. I'd like to have Chinese food for dinner. Sentence3: Let's do a museum. Can you please send me the postcode, and phone number please. Sentence4: we can do Museum of archaelogy and anthropology, it is in university of cambridge, downing street. code number cb23dz. their phone number is 01223333516 Sentence5: There are 3 options. I recommend jinling noodle bar. Sentence6: Great, now can you also book a taxi for me? I need to make sure I get to the restaurant from the museum in time for that reservation. Sentence7: Booking completed! The car type is a black honda and the contact number is 07016630526. Can I help with anything else today? Sentence8: Thank you and enjoy the city! Sentence9: What time would you like? Sentence10: Thanks, that's it for now! Have a good day! Sentence11: There is lots to see in the centre. Were you looking for a certain type? Sentence12: Booking was successful. The table will be reserved for 15 minutes. Your Reference number is : YNWUFRQ4 . Sentence13: A moderate price range would be best. Sentence14: There are 10 Chinese restaurants in the centre. What is your price range, please? Sentence15: Would you be interested in architecture, a museum, or perhaps theatre? Sentence16: I'd like to find an interesting attraction in the city center. Sentence17: I would like to reserve it for 11:15 for 8 people. Sentence18: That sounds interesting. Can I get reservations for Thursday? Question: Who has spoken the sentence 5? (A) User (B) System
Answer: (B) System

Sentence1: I am departing from Norwich. I would also like to leave on Wednesday. Sentence2: Hello, we have many trains going to cambridge. Where will you be departing from? Sentence3: No, Clare Hall is a college. Sentence4: clare hall is an excellent choice on the west end. Sentence5: Yes, I would like some suggestions on places to go on the west side of town. Sentence6: There are a total of 14 trains leaving Norwich on Wednesday every hour beginning at 10:16. Would you like to book the 10:16 train or any later train? Sentence7: You're welcome. Please come back if you have any other questions! Sentence8: I'm looking for a train to cambridge leaving after 09:30, can you help? Sentence9: The 10:16 will be great, I'd like to book for 1 person please. Sentence10: I recommend Whale of a time and the post code is cb238el Sentence11: I am looking for attractions on the west side of town related to entertainment. Please recommend one and provide the postcode Sentence12: Is this a type of entertainment? Sentence13: Ok thank you, that's all I need today. Sentence14: Your fee will be 17.6 GBP, payable at the station, and your reference number is J3K7VE8G . Do you need anything else today? Question: Who has spoken the sentence 10? (A) User (B) System
Answer: (A) User