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

Sentence1: There are no architectural attractions anywhere in town? Sentence2: Alexander bed and breakfast is available, would that work for you? Sentence3: from what day should i book? Sentence4: Yes, I am looking for an expensive place to stay that includes free parking. Sentence5: Sure, that sounds good. Could you give me the information on All Saints Church? Sentence6: All saints church is listed as architecture, would you like to go there? Sentence7: I could not find any attraction that match your request. Can I look for museums? Sentence8: I'm just looking for something that is a guesthouse in the cheap price range. Sentence9: Sure! I have a few places in mind, but can you tell me if you prefer a particular area? Sentence10: No that was it. Thank you so much for your help. Sentence11: It is in the centre located at Jesus Lane and the entrance is free. Their phone number is 01223452587 and the postcode is cb58bs? Anything else I can help with? Sentence12: Starting Thursday. Sentence13: I'm looking for any type of architectural attractions in town. Do you have any recommendations? Sentence14: You have a room booked for Thursday. Reference number is U3DO9AJP . Can I help with anything else? Sentence15: Thank you and goodbye. Sentence16: can you book for 4 people 5 nights and get me the reference number please? Question: Who has spoken the sentence 6? (A) User (B) System
Answer: (A) User

Sentence1: Is there any place to eat that serves Indian? Sentence2: Thank you so much. I think that will be it for today. You've been a great help. Goodbye. Sentence3: Yes, please book a table for 8 on Tuesday at 20:15. I'd also like the reference number, please? Sentence4: Yes could you please book that for me for 8 people and provide a reference number for the booking. Sentence5: Which area are you referring to? Sentence6: Which restaurant should I book? There are 5, in the west, that serve Indian food. Sentence7: Can you suggest one that has an expensive price range, please? Sentence8: I am looking to arrive by 17:15 on tuesday. Sentence9: Would you like me to reserve a table? Sentence10: I have the reservation booked at the restaurant. The reference number is 2YCEETCJ . Sentence11: We have many fine restaurants in the west, but I recommend Sala Thong, which serves Thai food. Would you like to book a table? Sentence12: I'm glad I could help. Have a wonderful trip and a wonderful day. Goodbye. Sentence13: Yes please book it for 8 people on tuesday at 20:15 Sentence14: Booking was successful, the total fee is 102.4 GBP payable at the station . Reference number is : AIM1QZ4C . Sentence15: I am looking for a train from Stevenage to Cambridge. Can you help me? Sentence16: I have found you a train that leaves at 15:54 and arrives by 16:43. Would you like this one? Sentence17: I would like it to be in the West of town. Sentence18: Yes, I recommend Tandoori Palace. It meets your specifications. Would you like to book a table? Sentence19: Thank you! I also am looking for a place to eat at in the west area. I would prefer a nice expensive one. Sentence20: Of course! What day would you like to leave and what time would you like to arrive? Question: Who has spoken the sentence 17? (A) User (B) System
Answer: (B) System

Sentence1: Yes, that would be great. I will be there for three nights. Sentence2: So glad I could be of assistance. Have a lovely day! Sentence3: We arrive on Monday and stay for 3 nights, there are 7 of us. Sentence4: dojo noodle bar would be perfect for you. Shall i book it ? Sentence5: Actually I want a restaurant that serves food in the type of the americas Sentence6: A black volkswagen is booked for you. The contact number is 07101354106. Anything else today, or will that be all? Sentence7: How many people and from what day will you stay? Sentence8: Thanks for all of your help today you have been wonderful! Sentence9: I need to find a place to stay in the centre of town. Sentence10: There are no cheap restaurants in the centre of town serving cheap food from the Americas. Wild you like to try a different area or cuisine? Sentence11: Yes please. Also, I'd like to get a taxi and leave the hotel at 14:30. Could you get me the contact number and car type? Sentence12: Perfect. Alexander Bed and Breakfast is a cheap guesthouse in the center with free internet and parking. Can I book it for you? Sentence13: I need to find a place to eat as well. Sentence14: Booking was successful. Reference number is : DHS86PO0 . Can I help with anything else today? Sentence15: I'd like a cheap guest house with wifi. Sentence16: Do you have a price range? Sentence17: I would love to help you with that. Do you have anything specific in mind? Area? Price range? Sentence18: Nandos City Centre is a cheap place to eat and is in centre. Can I book it for you? Sentence19: I am looking for the same area and price range as the guesthouse -- centre and cheap. Sentence20: Sure, how about Portuguese? Question: Who has spoken the sentence 5? (A) User (B) System
Answer: (B) System