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

Sentence1: I am planning a trip in Cambridge. I'm looking for a train. Sentence2: no, that is all. Thanks, goodbye. Sentence3: It will cost you 17.90 Sentence4: Where are you departing from? Sentence5: I would suggest this one the golden curry. Sentence6: your all set! Reference # is TKNF8H2H . Anything else today? Sentence7: I am departing from Broxbourne and I would like the train to arrive by 10:00. What is the price for this? Sentence8: sure what day are you traveling? Sentence9: Have a great day. Sentence10: Please book that one for 8 people on Friday at 17:00. Sentence11: No thanks. I just need the price per ticket. Sentence12: The TR5570 train will work. Would you like me to book you passage? Sentence13: Okay thank you, I'm also looking for an Indian restaurant in the east that is expensive. Sentence14: I plan to travel on friday. Question: Who has spoken the sentence 6? (A) User (B) System
Answer: (A) User

Sentence1: Then you are all set? Sentence2: I booked you a black volvo. The driver can be reached at 07410117478. Is there anything else I can help you with today? Sentence3: I'm sorry, I clearly wasn't paying attention. Yes that is all I need. Sentence4: Booking was successful. The table will be reserved for 15 minutes. Reference number is : 0IJIWWQ9 . What else can I help you with? Sentence5: We have five hotels that meet that criteria, are you looking for a specific part of town? Sentence6: Yes. Have a great day. Sentence7: Anything in the centre would be fine, whatever you recommend. Sentence8: Regretfully, I don't have a listing for Venetian cuisine. Do you have a second choice? Sentence9: I'm looking for a place that has 3 stars and free parking. Sentence10: There are over a hundred restaurants to chose from do you have a price range? Sentence11: Does that one have free internet as well? If so it will work great for me. Sentence12: Yes I can. What type of place to stay would you like? What area of town? Sentence13: Yes the hamilton lodge is 3 stars moderately priced and offers free wifi and parking. Sentence14: There are 4 results. restaurant one seven, the oak bistro, the copper kettle, and cotto. Would you like more information on any of those? Sentence15: Sadly, I don't have access to that information. The Oak Bistro might be a good choice. Their phone number is 01223323361 if you'd like to call them Sentence16: Thanks, I need a taxi to commute between the two places. Sentence17: I am not looking for a specific area, but I would like for it to be in the moderate price range, please. Sentence18: Definitely something moderately priced. If you can't find Venetian, how about British? Sentence19: Thank you for calling. Sentence20: I'm looking for a restaurant that serves venetian food. Sentence21: Yes, please. Find out which of the four restaurants have vegan options, please? Sentence22: How about the hamilton lodge it's located in the north. Sentence23: I am traveling between the two places discussed, I need to reach the restaurant by the booked time. Sentence24: I can help you book a taxi but first I need some information - where are you leaving from and what's the destination. Also what time do you want to leave? Sentence25: I also need a place to stay. Can you help with that? Sentence26: Okay, well, let's go ahead and book a table for one at 11:30 on Tuesday. Question: Who has spoken the sentence 18? (A) User (B) System
Answer: (A) User

Sentence1: I don't care about the type of cusine, I'd like it to be in the moderate range in the north. Sentence2: Great. I also need to find a restaurant for the same number of people on the same day for 19:00. Sentence3: There is a Chinese restaurant and an Indian restaurant in the North. Where would you like to go? Sentence4: No, thank you, that's all. Sentence5: I have 9 different places for you. Do you prefer a guesthouse or hotel? Sentence6: There are several that offer free parking in the north, do you have a price range? Sentence7: It was my pleasure to help. Have a great afternoon. Goodbye. Sentence8: Let's go with the chinese place. Can you book me a table for 2 on Thursday at 19:00? Sentence9: I'd love to help you find a place to eat. What kind of food do you like, and is there any part of town you prefer to dine in? Sentence10: I have your table reserved at the Golden Wok for Thursday at 19:00. The reference number is 5ZZI5FKL . Is there anything else I can help with? Sentence11: Ashley hotel looks like a good choice. Sentence12: ok i would like to book it for thursday for 2 people for 3 night im also looking for a restaurant in the same price range as the hotel Sentence13: Booking was successful reference number is I53II5MX . There are several restaurants is there any food preference? Sentence14: I am looking for a place to stay with free parking and need to be in the north Sentence15: I would like a hotel please. Sentence16: Yes, I'd like a moderately priced one, and I also need free wifi. Question: Who has spoken the sentence 5? (A) User (B) System
Answer: (B) System