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

[Q]: Sentence1: I have your taxi booked. Look for a blue volkswagen, contact number 07655267463. Is there anything else I can help you with? Sentence2: I need to book a place to stay with a star of 4. I don't need free parking. Sentence3: Can you please provide me with the address, telephone number and the cost of admission. Sentence4: Thank you. Enjoy your stay Sentence5: I now need a taxi to get to the church from the hotel. I would like to leave the hotel by 15:45. Can you book that for me? Sentence6: I don't care about location, just would like a moderate price with 4 stars please. Sentence7: We have 44 attractions in the centre of town Broughton House Gallery is a museum we have available. Sentence8: We have 11 in the moderate range. They are all a guesthouse accommodation. Would you like one of these? Sentence9: I need one with free wi-fi. Sentence10: I have you booked. The reference number is WPGQ4ADJ . Sentence11: After that I'm also going to need the reference number. Sentence12: OK, now can you tell me about some of the attractions in the center of town? Sentence13: I would also need to book it for 4 nights. Sentence14: No, that is all. Thanks so much. Bye. Sentence15: One person, and I'd like to arrive on Tuesday. Sentence16: We have over 20 fine hotels. Do you have any preferences of cost or location? Sentence17: How long do you want to stay? Sentence18: Can i book one on tuesday? Sentence19: OK, let me see what I can do. Sentence20: How about All Saint's Church at 01223452587 in the centre? It's free. Sentence21: before I look for that, could you let me know how many people are staying and what day you'd like to arrive? Sentence22: I have two: a and b guesthouse in the east and avalon in the north. Would one of these work for you? Question: Who has spoken the sentence 18? (A) User (B) System
[A]: Answer: (A) User

[Q]: Sentence1: I will need to know where you are leaving from and going to and what time you wish to arrive or leave. Sentence2: I will be commuting between the hotel and restaurant. Sentence3: That will be okay, can we book that. Sentence4: Sorry, I have no results for that query. Would you like to try a different area of town? Sentence5: Which one would you recommend? Sentence6: Yes I have two. Would you like me to book one? Sentence7: I'd like a taxi to travel from the restaurant to the hotel. Sentence8: Please tell me how many people will be staying, starting on what day and for how many nights? Sentence9: Yes, need a chinese food restaurant in the same area and price range as the hotel. Sentence10: Booking completed! Booked car type yellow honda Contact number 07378282192 Sentence11: Yes both of them have free parking. Sentence12: It will be just me today, thanks. Sentence13: I'm looking to stay at a 3 star hotel in the north. Sentence14: I hope you have a pleasant stay! Sentence15: Thank you for your help. That is all I need today. Goodbye Sentence16: Thanks. Sorry about that. I'd still like to request a taxi between the two. Sentence17: Okay. The postcode for the Ashley Hotel is cb41er. The address is 74 Chesterton Road. Can I help with anything else today? Sentence18: the ashley is actually a 2 star hotel. Sentence19: I need to leave the restaurant by 3:30, and I'll be going to the hotel. Sentence20: It is cb43hl 191 Histon Road Chesterton Sentence21: Is the Ashley hotel a 3 star hotel? Sentence22: You never actually mentioned a restaurant. Are you needing help finding one? Sentence23: Are there any moderate priced hotels in the North? Sentence24: How about the Ashley hotel? Sentence25: no. i just need the postcode and address Sentence26: I need a hotel to include free parking; does either have that? Sentence27: I do not want to book it. I need the postcode and address only. Sentence28: Golden Wok sounds suitable for you. Do you want a reservation? Sentence29: How many people? Sentence30: Okay, let me work on booking that for you. Question: Who has spoken the sentence 29? (A) User (B) System
[A]: Answer: (B) System

[Q]: Sentence1: Nope, that's all for me. Thanks for your help. Goodbye! Sentence2: I have successfully booked that for you. Your reference number is 6NUU0T68 . Is there anything else I can help you with today? Sentence3: Yes, please. In the same price range, if possible. Sentence4: I am looking for a hotel that include free parking and has a 1 star rating. Sentence5: I'm sorry, there are no hotels or guest houses matching that criteria. Sentence6: How many people are you wanting to book the hotel for? Sentence7: There are no cottages. Sentence8: Could find one in a moderate or cheap price range? Sentence9: Yes can you find guesthouses meeting that criteria? Sentence10: for 8 people. Starting from Sunday for 4 nights, please. Sentence11: Could you please try guesthouse, with free parking and a 4 star then? Sentence12: Sure, there are a few. Can I book you a room at one of them? How about The Acorn Guest House? Sentence13: I have the arbury lodge guesthouse in the same area and price range,would you like me to book that one? Sentence14: Yes go ahead and try that please. Sentence15: You're welcome, have a great day! Sentence16: Can you locate a cottage that offers what i am looking for. Sentence17: There are no hotels that meet that criteria. Would you like me to expand the search a bit? Sentence18: I have 16 entries matching that criteria. What part of town and price range would you prefer? Sentence19: Yes please try to book that for me thank you. Sentence20: The booking for the Acorn Guest House was unsuccessful. Would you like me to look for another hotel for you? Question: Who has spoken the sentence 8? (A) User (B) System
[A]:
Answer: (A) User