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

Sentence1: Booked car type : white toyota Contact number : 07264671188 All set. What else can I help with today? Sentence2: looking for places to go in town and be in the South Sentence3: Yes, please book it. Sentence4: Thank you. I'd also like to book a taxi. I need to leave the hotel by 10:15. Sentence5: When will you start your stay? Sentence6: What's the entrance fee? Sentence7: What type of attraction are you looking for? Sentence8: The attraction should be in the south. Sentence9: I think I got everything I need thanks to you! Sentence10: Unfortunately, Nusha has not provided any information on entrance fees. I can seek other options, if you'd like. Sentence11: I need it for Thursday night, for four nights, for 4 people. I'll also need a taxi by 10:15. I need the car type and contact number please. Sentence12: Booking was successful. Reference number is : Y3CFU8WN . Sentence13: There is a hotel called Cityroomz in centre located at Sleeperz Hotel, station road. Would you like me to book it for you? Sentence14: how about nusha? it's located in the south. Sentence15: then find me a particular hotel called cityroomz Sentence16: Well, you are very welcome. I hope you have a great time! Question: Who has spoken the sentence 13? (A) User (B) System
Answer: (B) System

Sentence1: Id is TR0625, travel time is 79 minutes and you will arrive by 22:55. Anything else? Sentence2: Actually, could you help find a train as well? To Norwich? Sentence3: I found a train from cambridge to norwich at 05:36 on Friday, will that work? Sentence4: Sunday would be good. Sentence5: No, you've answered all of my questions. Thanks so much for your time. Bye. Sentence6: The Acorn Guesthouse is a 4 star hotel located in the north side of town. It includes free internet and parking. Would you like me to book it for you? Sentence7: I need to leave after 21:30, is there anything closer to that time? Sentence8: Thank you, and thanks again for using our free service. Sentence9: I am trying to find the Acorn Guest House. Sentence10: No, just leave after 21:30. Will you give me the travel time, arrival time and the Train ID? Sentence11: No, thanks. I will go ahead and book it myself. I think I have all the information I need. Thank you. Sentence12: Is there a time you need to arrive by? Sentence13: Yes there are 14 trains. Which day would you like to depart? Sentence14: Thank you for using our service, have a nice day. Question: Who has spoken the sentence 11? (A) User (B) System
Answer: (B) System

Sentence1: Yes, I do. I'd like to leave from Birmingham New Street on Monday and arrive in Cambridge. Sentence2: There are 2 which would you like? There is one in the south and the centre Sentence3: Yes, could you make a reservation for 6 and provide me the reference number when complete. Sentence4: Okay thanks, you've been a lot of help. Bye! Sentence5: I need to leave after 16:45 please. Sentence6: All booked for 6! Your reference # is 9WAFMF6U . Anything else I can do for you? Sentence7: And what time would you like to travel on monday? Sentence8: Thank you for contacting us, you have a nice day. Sentence9: TR3130 leaves at 17:40 on Monday from Birmingham New Street to Cambridge. Would you like me to book you a seat? Sentence10: Can you get me the area and postcode for a cinema in Cambridge? Sentence11: I would be happy to help you find a train! I have several options, do you require a particular departure or arrival time? Sentence12: the postcode is cb17dy this is the one for the south area. Sentence13: It doesn't really matter. How about the one in the centre? Sentence14: I need a train from Birmingham new street to Cambridge departing on Monday. Question: Who has spoken the sentence 12? (A) User (B) System

Answer: (A) User