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

[EX Q]: Sentence1: Okay that is all I needed. Sentence2: Can you help me find a hospital close by for an injury I have? Sentence3: The address is Hills Rd, Cambridge and Postcode is CB20QQ. Sentence4: I have information for Addenbrookes Hospital at Hills Rd, Cambridge. If you have a certain department you would like to contact, I can get that number for you. Sentence5: Okay. Glad I could be of help. Sentence6: I just need the adress and the postcode if you have it. Question: Who has spoken the sentence 1? (A) User (B) System
[EX A]: Answer: (B) System

[EX Q]: Sentence1: Goodbye and have a nice day. Sentence2: Little Seoul's address is 108 Regent Street City Centre. Their phone number is 01223 308681. Sentence3: Thank you, goodbye. Sentence4: There are several restaurants located in the centre, which kind of food do you prefer? Sentence5: is there a restaurant in the Centre? Sentence6: Little Seoul serves Korean food in the city's centre. It is expensive but very classy. Would you like to know more about it? Sentence7: I would like one serving korean food, possible. Sentence8: Can I get the address and phone number? Question: Who has spoken the sentence 3? (A) User (B) System
[EX A]: Answer: (B) System

[EX Q]: Sentence1: I am sorry there is nothing that meets that criteria. Is there another type of food or area you would be interested in? Sentence2: Thanks, will you please book a table for 7 people on thursday at 13:00? Sentence3: I'm looking for a restaurant in the east. Sentence4: How about British food? Sentence5: There are nine restaurants in the east. Do you have a price range in mind? Sentence6: You are welcome. Enjoy your dinner! Sentence7: Booking was unsuccessful. can we book another day or time slot? Sentence8: Nope, that should be everything. Thank you so much for all of your help. Sentence9: Booking was successful for Thursday at 1200hrs , table for 7 at Grafton Hotel restaurant. Your Reference number is KQKTCX5Y . Is there anything else I can help you with? Sentence10: I would recommend you try Grafton Hotel Restaurant. As requested it is in the east and serves British food. Sentence11: I don't have a price range but I am looking for asian oriental cuisine. Is that possible? Sentence12: please try booking at 1200hrs and get me the reference number Question: Who has spoken the sentence 11? (A) User (B) System
[EX A]:
Answer: (B) System