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

Q: 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

A: Answer: (B) System
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Q: Sentence1: Kymmoy is in the centre of town and the phone number is 01223 311911. May I help you with anything else? Sentence2: Thank you, I have all I need. Goodbye! Sentence3: What is the phone number and area? Sentence4: Is there any expensive restaurants in town serving Australian food? Sentence5: You're welcome. Thanks for your call! Goodbye. Sentence6: Kymmoy is an expensive asian oriental restraunt in town. Sentence7: I'm sorry, there are no Australian restaurants. Would you like another type of food? Sentence8: How about asian oriental food? Question: Who has spoken the sentence 2? (A) User (B) System

A: Answer: (A) User
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Q: Sentence1: Can i get the phone number and address for University Arms please? Sentence2: no worries, i can give you three options to choose from Sentence3: Alexander Bed and Breakfast guesthouse (cheap) and University Arms Hotel(expensive) are both available in that area and are 4 stars with parking. Sentence4: How about lebanese food? Sentence5: Yes that sounds great. Please book me a table for 5 at 20:00 on Monday. Sentence6: I'm sorry, you must have misunderstood. Would you like me to book Alexander or University Arms for your stay? Sentence7: I'm sorry, there aren't any restaurants like that. Would you like to try searching for something else? Sentence8: Yes, the centre of town please. Also, no internet is needed, but i would prefer free parking. Sentence9: Thanks, I also need to find a restaurant with modern eclectic food in Centre. Sentence10: We've got 33 four star hotels in the area. Is there any particular part of town you'd like to limit it to? Sentence11: You're welcome. Enjoy your day. Sentence12: It is in the expensive price range, and the address is regent street postcode cb21ad. You can call them at 0122335124. Could I help you with anything else? Sentence13: I need a place to stay that has 4 stars. Sentence14: No I just need the price range, address and phone please. Sentence15: Sure, the phone number is 01223351241 and the address is regent street. Would you like to book a room? Sentence16: Thank you, that is all I need. Have a good day. Sentence17: Booking was successful. The table will be reserved for 15 minutes. Reference number is : 66Y5KK37 . Sentence18: Ali Baba is a Lebanese restaurant in the centre. It's moderately priced. Will that work for you? Question: Who has spoken the sentence 12? (A) User (B) System

A:
Answer: (A) User
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