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

Sentence1: How about Italian food instead and could I have the phone number if you find a restaurant Sentence2: There are no matching restaurants. Would you like me to perform another search? Sentence3: Prezzo is a moderately priced Italian restaurant in the west side of town. The phone number is 01799 521260. Sentence4: Thank you, goodbye. Sentence5: West side of town. Sentence6: Thank you good bye Sentence7: I want a restaurant with corsica food please. Sentence8: What is the area you would like? Question: Who has spoken the sentence 4? (A) User (B) System
Answer: (A) User

Sentence1: Is there one close to the area I booked the restaurant reservation? Sentence2: I have found 9 guesthouses that meet that requirement. Is there a certain area you would prefer to stay in? Sentence3: No, I would just like the star rating, postcode, and phone number of the establishment. Sentence4: Can I have the reference number please? Sentence5: How about a cheap one? Sentence6: Unfortunately there are no guesthouses that are in the expensive price range. Sentence7: Sesame Restaurant and bar number 01223358899 and it's address is 17 Hills Road City Centre. Sentence8: I have booked your request for 7 people at the Sesame Restaurant and Bar, located at 17 Hills Road City Centre for 6PM on Monday. Sentence9: That takes care of everything. Thank you for the help. Sentence10: i have found 29 hotels that meet your criteria, what price range are you looking for? Sentence11: Yes certainly. However, there seems to be an error. I was unable to book that time. Is there another time I could book for you? Sentence12: Is 5PM available instead? Sentence13: I would like to make an appointment for 7 people at 6PM on Monday. Sentence14: Great. I'm also looking for a place to stay. I need a hotel that includes free Wi-Fi and free parking Sentence15: Do you have an expensive guesthouse? Sentence16: Alright, have a nice day! Sentence17: Yes I have the Alexander Bed and Breakfast in the city center. Would you like me to book it for you? Sentence18: The Alexander Bed and Breakfast is a 4 star guesthouse. The postcode is cb12de and the phone number is 01223525725. Is there anything else I can help you with? Sentence19: Hello, I would like information on the Sesame Restaurant and Bar. Sentence20: Yes it is. I have booked a table for you at 17:00 on Monday for 7 people. The reference number is CZ3JGGJP . Question: Who has spoken the sentence 5? (A) User (B) System
Answer: (B) System

Sentence1: I need a moderate priced room in the South. Hotel, or guesthouse. Sentence2: Yes, train TR2941, departing Cambridge at 9:01 will cost 14.32 pounds per ticket. Sentence3: i am looking for a train. The train should go to broxbourne and should leave on sunday Sentence4: good bye and have a great day Sentence5: There are no results matching your request. Would another location be okay, or perhaps a different price range? Sentence6: Yes there are several trains available. What is your departure site and arrival and departure times. Sentence7: There are several in Cambridge. What part of town would you like to stay in? Sentence8: Please book me a room, I would like the reference number. Sentence9: Your reference number is T921UTQK . What else can I do for you today? Sentence10: Could I get the price, departure time and train ID? Sentence11: I think I'd prefer a hotel. I need it for 3 people, 2 nights starting Friday. I need a reference number please. Sentence12: I would like something in the moderate price range. Sentence13: There are no moderate 3 star hotels in the whole of London? Sentence14: Nothing else. I think that's all I needed. Have a good day. Bye. Sentence15: Great. I also need a moderate hotel in the south. Sentence16: I'd like to leave from Cambridge to arrive at Broxbourne by 10:45. Sentence17: There is the lensfield hotel but it is in the expensive price range, would you like me to try another area? Sentence18: I am sorry but there are no moderately priced 3 star hotels. Could we try another search? Sentence19: Would a guesthouse be ok? I have a 3 star, moderately priced guesthouse in the south with wifi. Sentence20: Can you suggest something with free wifi and a 3 star rating? I'm open to less expensive price ranges. Sentence21: TR2941 arrives at 10:01. Sentence22: bridge guest house is popular this time of year and would suit those needs. Can I book you a room? Question: Who has spoken the sentence 16? (A) User (B) System

Answer: (A) User