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

[Q]: Sentence1: Great! I have booked you a taxi, which will pick you up from the hotel. It will be a yellow Tesla and the contact number is 07140486418. Anything else today? Sentence2: no thank you that is all Sentence3: Could you also book it for me? 3 people, 14:30 on Sunday. Sentence4: Where would you like the taxi to pick you up? Sentence5: Are you sure that you don't want to get to the restaurant for your booked time? Sentence6: I am looking for a place to dine in the centre of town Sentence7: It doesn't matter. We want to eat indian food. Sentence8: Yes,that is it for today. Thanks again. Sentence9: You're welcome, let me know if I can assist with anything else. Sentence10: We have several options. What price range would suit your needs? Sentence11: Sorry, I do need to find a guesthouse as well. Something moderately priced, perhaps 3 stars? Sentence12: May I also have the telephone number for the alpha-milton, please? Sentence13: it should pick me at the restaurant at the booked time Sentence14: the alpha-milton is located in the north. their address is 63 milton road and the postcode is cb41xa. Sentence15: The alpha-milton guest house will fit your needs. Would you like me to be book a room there? Sentence16: Sure, the number for Alpha-Milton Guest House is 01223311625. Can I help with anything else? Sentence17: I have your table booked for Sunday afternoon. They will hold the table for 15 minutes. Your reference number is 28O595TK . Can I help you with anything else? Sentence18: Yes, the address is 106 Regent Street in the City Centre. Their phone number is 01223302330. Can I help with something else? Sentence19: I do need the taxi to get to Curry Garden by the booked time of 14:30. I'm a little scatter brained today. Thank you for clarifying. Sentence20: The prompt before this call came through said that you needed two things, do you need anything regarding a hotel, transport or attractions? Sentence21: Thank you for using our services. Have we met all of your needs today? Sentence22: i also want a taxi to help commute between the two places Sentence23: Well I have the Curry Garden in the expensive price range. Sentence24: No thank you, I just need the address, phone number and area. Sentence25: Please provide me with the address and telephone number. Sentence26: nope, that's all thanks so much! Question: Who has spoken the sentence 16? (A) User (B) System
[A]: Answer: (A) User


[Q]: Sentence1: Thank you goodbye. Sentence2: the cow pizza kitchen and bar is a moderately priced gastropub in the centre of town. It's located on Corn Exchange Street, and the phone number is 01223 308871. Sentence3: Can I have the address and phone number of a gastropub in the centre of town? Sentence4: There are three gastropub restaurants listed. One is in the east part of town and the rest are in the centre. Sentence5: I would like the address and phone number of the one in the east part of town. Sentence6: A moderate priced irish food restaurant. Sentence7: thank you and good bye Sentence8: there are no irish restaurants. Would you like to choose another type of food? Sentence9: I'm sorry, it appears there are no results for the east part of town. Our system is having difficulty of some sort. Sentence10: Yes, could you please check whether there is a gastropub? Question: Who has spoken the sentence 7? (A) User (B) System
[A]: Answer: (B) System


[Q]: Sentence1: Sure. It's located at 732-734 Newmarket Road. Can I help you with anything else? Sentence2: I'm looking for a hotel called the Leverton house. Can you help me find it? Sentence3: The car will be a yellow toyota and their number is 07865026456, is there anything else you need? Sentence4: Does it have an entrance fee? Sentence5: Okay I also need a taxi that will leave the attraction by 08:45. Sentence6: I am also looking for places to go in town. Maybe something in the south. Sentence7: No, I think that will be all. Thank you for your help! Sentence8: There are several places to go in the south. Are you interested in cinema, entertainment, musuem, a nightclub, or perhaps something else. Sentence9: Thank you very much. Sentence10: That information is not available to me. The phone number is 00872208000. Sentence11: Cineworld Cinema is a great place to visit. It's located on the south side at cambridge leisure park, clifton way. Is there anything else i can help you with? Sentence12: Yes, please give me the reference number. Sentence13: Yes. I would like to book it for four nights, starting Sunday. Five people. Sentence14: Thanks and enjoy your time ! Sentence15: Booking was successful! Your reference number is. PIKSVFZT Sentence16: You're welcome. Have a great day! Sentence17: How about a cinema? Sentence18: Will you be needed a reference number for the booking? Question: Who has spoken the sentence 7? (A) User (B) System
[A]:
Answer: (B) System