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

Sentence1: I prefer a gueshouse. Sentence2: I'm glad I was able to help you today! Thank you for contacting Cambridge TownInfo centre. Enjoy your trip! Goodbye! Sentence3: There are many places to stay that offer free parking. Do you prefer a guesthouse or hotel? Sentence4: No, but can you help me find a restaurant? I think it's called Meghna. Sentence5: Ahhh.. great, thanks! That's all I needed! Sentence6: Yes, they are at 154 chesterton road and can be reached by phone at 01223353888. Would you like me to book you? Sentence7: Great can you tell me the star rating of the hotel as well? Sentence8: Yes, that is a moderate priced indian restaruant in the west. Sentence9: Acorn Guesthouse has a star rating of 4. Would you prefer other options or would you like for me to book you? Sentence10: That's it! Can you give me the phone number and area, please? Sentence11: Can I please have their address and phone number? Sentence12: The acorn guest house would fit your needs would you like me to make a reservation for you Sentence13: Meghina's phone number is 01223727410. They are located in the west. Sentence14: Place to stay the night, with free parking and it doesn't need free wifi. Question: Who has spoken the sentence 2? (A) User (B) System
Answer: (A) User

Sentence1: Unfortunately, no. La Margherita is an italian place. And, Thanh Binh serves vietnamese. Sentence2: Would you like for me to make you a reservation? Sentence3: Thank you for using the Cambridge Town Info Centre Services! We hope you enjoy your time in Cambridge Sentence4: yes, I want to book a table for 6 people at 12:00 on sunday. Sentence5: Booking was successful. The table will be reserved for 15 minutes. Reference number is : H0BFXWTP . Can I help you with anything else today? Sentence6: Yes, book that for 6 people. I would also like the reference number. Sentence7: Where would you like to go to? Sentence8: Thanh Binh would be perfect. Sentence9: Certainly! There are two great restaurants that meet your criteria. The first in La Margherita and the second is Thanh Binh. Would you like more information on one of them? Sentence10: Your booking was successful. The total fee is 113.28 GBP, which is payable at the station. Your reference number is A5ZWGBQ3 . Sentence11: Yes, could you find me a train from ely that same day? Sentence12: thanks so much you have been very helpful Sentence13: Does it serve creative food? Sentence14: TR3207 will arrive by 07.51. Should I book it? Sentence15: Can you help me find a cheap restaurant in the west side of town? Sentence16: I would like a train to Cambridge, arriving by 09:45. Question: Who has spoken the sentence 10? (A) User (B) System
Answer: (A) User

Sentence1: The grafton hotel restaurant sounds perfect for you. Would you like me to make a booking? Sentence2: Alright, I was successful in booking the Allenbell for Friday for 7 people at one night. Your reference code is 7D76ELJF . Is there anything else I can help you with? Sentence3: Great, let's try booking a room there. Sentence4: I'd actually like to find a guesthouse in the east instead. I'd still like it to have free wifi. Sentence5: Can you also find me an expensive British restaurant in the same area as the hotel? Sentence6: Thank you for using our system! Sentence7: What time on Friday would you like to reserve your table? Also, will it be the 7 people? Sentence8: Actually, no need to book. I just need the postcode, phone number and address for the Grafton Hotel Restaurant. Thanks. Sentence9: Yes please. Could you provide me with their postcode, phone number, and address as well? Sentence10: I would like to find a hotel in the east. Can you help me? Sentence11: Your booking is completed. Your car type is a blue bmw and contact number is 07515734744. May I help you with anything else? Sentence12: Sure, Express by holiday inn cambridge is located in the east. Free internet & parking 2 stars. Phone number is 01223866800 Sentence13: The price does not matter. I would like it to be booked for 7 people for 2 nights starting from Friday. Sentence14: No, I think that covers everything. Thanks so much for your help! Sentence15: I'd like to book a taxi from the hotel at 18:30 to the restaurant. Sentence16: It is located at Grafton Hotel 619 Newmarket Road Fen Ditton, postcode cb58pa. Their phone number is 01223241387. Can I assist you with anything else? Sentence17: I have about 6 different ones. Do you have a preference on price range? I have cheaper options and moderately priced ones. Sentence18: The booking was unsuccessful do you have another choice? Sentence19: Maybe just a one night stay then, try that. Sentence20: I can book you into the allenbell. It is a cheap price range with free wifi and parking. Question: Who has spoken the sentence 11? (A) User (B) System

Answer: (B) System