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

Sentence1: Yes, I am also looking for places to go in town while we are visiting the area. Do you have anything of concert halls around the area? We love those. Sentence2: Yes, please, what is the phone number? Sentence3: I have that all booked for your stay. Your reference number for the room is ZUG88XKL . Is there anything else I can help you with? Sentence4: I am looking for a place to stay. It should be in a moderate price range and should be a star of 3. Sentence5: The phone number is 01223474144. Sentence6: Yes, I need a booking for 8 people for 5 nights starting Monday. Please include the reference number for the booking. Sentence7: Also the address to the man on the moon is 2 Norfolk Street. You have to call to inquire about the entrance fee. Have a Great day. Sentence8: We have one. The Man on The Moon. But it is located in the centre area of town. Would you like more information? Sentence9: Ok, perfect. Thanks! Sentence10: i have four results that match your request, do you need internet? Sentence11: I have the Hobsons House. It is a moderately priced guesthouse located in the west. Free wifi and internet. Can I assist you in booking a room? Sentence12: Internet is not necessary. But can you see if there is one in the west part of town and I would prefer a guesthouse. Question: Who has spoken the sentence 10? (A) User (B) System
Answer: (A) User

Sentence1: It does not matter, I just need one available for 7 people at 18:15 on thursday Sentence2: I'm sorry, nothing is coming up for that particular type of restaurant. Is there any other specifics you may like? Sentence3: The reference number is DVDLH9NK . Is there anything else I can help you with? Sentence4: Unfortunately I could not find any guesthouses meeting those requirements. Sentence5: How many stars is Cityroomz? Sentence6: Before I can book your taxi, what time are you wanting to leave or arrive by? Sentence7: Fantastic. Enjoy your trip! Sentence8: Not yet. I would like you to book a taxi for me between my hotel and restaurant. I will need the car type and contact number. Sentence9: It has a zero star rating, is this ok? Sentence10: I also need the reference number please. Sentence11: I just want to be sure it arrives by the booked time at the restaurant. Sentence12: Cityroomz is the only place that matches your criteria. Sentence13: That is fine. Do they have internet? Sentence14: I have made a reservation at restaurant alimentum for you. Your table will be reserved for 15 minutes. The address is 152 - 154 Hills Road. Sentence15: How about one that serves modern european food? Sentence16: Thank you very much for your help! That was everything I needed. Sentence17: How about a hotel type? Sentence18: There are 3 restaurants serving modern european food, would you prefer one on the south side or town centre? Sentence19: Yes, Cityroomz has internet. Would you like to book it? Sentence20: Booked. Your car type is white skoda and contact number is 07075801794 Sentence21: Can you find me restaurant with moderate prices that serves north indian cuisine? Sentence22: Yes, I also need a guesthouse hotel with moderate prices in the centre. I don't need free parking. Question: Who has spoken the sentence 15? (A) User (B) System
Answer: (B) System

Sentence1: I ahve two places, Chines and Portuguese, which would you prefer? Sentence2: Hi, I'm looking for a cheap restaurant in the south. What do you have? Sentence3: Booking was successful. The table will be reserved for 15 minutes. Reference number is : VMFXYH18 . Sentence4: Any other hotels? Sentence5: i am also looking for a hotel that includes free wifi. Sentence6: I would like to book a room for 5 nights for 5 people starting the same day. Sentence7: I'm sorry I was unable to book that. Would you like to try another venue? Sentence8: I would like to book for the lensfield hotel for 5 people from the same day but for 3 nights only then. Sentence9: Yes. Can you book me a take for 5 at 18:00 on monday? Sentence10: I only see the lensfield hotel, maybe we can try with other dates? Sentence11: That would be The Lucky Star located at Cambridge Leisure Park, Clifton Way, Cherry Hinton. Can I book a table for you? Sentence12: That's all I need. Thank you for your help! Sentence13: I definitely want a hotel, not a guest house. It should also be in the same area as the The Lucky Star restaurant. Sentence14: Booking for 3 nights was a success! Your reference number is ZE9TPUSJ . Is there anything else I can help you with today? Sentence15: There are many hotels and guest houses. Do you preder a certain location and price range? Sentence16: It was a pleasure to help. Thanks for using our service. Have a great night. Goodbye. Sentence17: The Lensfield Hotel is in the south and falls in the expensive price range. They're a 3 star establishment with free wifi and parking. Care to book a room? Sentence18: Chinese would be great. Sentence19: Can we try 17:00? Sentence20: Unfortunately, I was not able to book it for monday. Did you have another day in mind? Question: Who has spoken the sentence 18? (A) User (B) System
Answer: (A) User