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

[EX Q]: Sentence1: i want to find a hospital in town Sentence2: No, can I get the phone number, address, and postcode? Sentence3: welcome. at your service next time Sentence4: Addenbrookes Hospital is nearby, at Hills Rd, Cambridge. Do you need a particular department? Sentence5: you are always welcome Sentence6: Great, that's all I need today! Thank you! Sentence7: The phone number is 01223245151, The address is Hills Rd, Cambridge. The Postcode is CB20QQ. Sentence8: Thank you for your help. Question: Who has spoken the sentence 6? (A) User (B) System
[EX A]: Answer: (A) User

[EX Q]: Sentence1: There are more than one hundred entries that match your requirements. What type of food do you prefer? Sentence2: I'm positive. There are however three hotels that have four stars that have free wifi, if you would like to view those options. Sentence3: A 4 star rating is fine, what do you have for that? Sentence4: The only French restaurant that fits your criteria is called Cote. They do not have any availability for Wednesday at 12:30. Sentence5: My pleasure. Have a great day! Sentence6: Wonderful! That's all I need. Thank you very much for your help! Sentence7: I prefer French Cuisine, can you find somewhere that will take reservations for 3 people at 12:30 on wednesday? Sentence8: Are you sure? I would prefer a 5 star hotel with free wifi. Sentence9: I have two in the west area and one in the centre area. Do you have a preference? Sentence10: Thanks I also need to find a hotel with a 5 star rating. Sentence11: Are there any expensive places to eat in the centre? Sentence12: That was a success. Your reference number is 2GY5ULLL . Sentence13: Can you try for 11:30 and give me a reference number please. Sentence14: The booking for the University Arms Hotel was successful, and your reference number is 414HUS87 . Sentence15: Unfortunately, I do not show any 5 star hotels. Would you like to try a different rating? Sentence16: The one in the centre area is fine. Can you please book it for 3 people, starting on Wednesday for 4 nights and can I please have the reference number? Question: Who has spoken the sentence 11? (A) User (B) System
[EX A]: Answer: (B) System

[EX Q]: Sentence1: I need a train. Sentence2: I have five hotels that match your requests. Sentence3: Okay, and where are you traveling to? Sentence4: I have 13 hotels in the north. What type of hotel did you want? Sentence5: Hey, I'd like to find a hotel in the north, today. Sentence6: Ok can you book that for me and get me a confirmation number Sentence7: I'm going to need more information than that. Where will you be departing from, and what is your destination? And do you have a date and time in mind? Sentence8: Okay. I would like to recommend the Acorn Guest House. Sentence9: Can I help you with anything else? Sentence10: There are a number of trains that leave after 15:45. The one closest to the time is TR1911 leaving at 16:11. What day would you like to travel? Sentence11: I want one with moderate prices that has free wifi. Sentence12: I made the booking for you. Your confirmation number is DN8DIW5T . What else can I do for you? Sentence13: Your 1 ticket booking on the TR1911 train was successful, the total fee is 9.8 GBP payable at the station. Your Reference number is : O8BN9KXH . Sentence14: You have all the information you need. Sentence15: Do they include wifi? Sentence16: i'm traveling to kings lynn and need to leave after 15:45 Sentence17: I'll need the to take the train on Tuesday. I'll need it for the same number of people as my hotel reservation. Sentence18: Thank you for contacting us and have a nice day. Sentence19: i will be leaving from cambridge after 15:45 Sentence20: Is there anything else I can help you with today? Sentence21: May i please have your details (Name, ID, Phone number, email) so i can go ahead and make the booking for you? Sentence22: That will be all. Thank you for your help. Sentence23: I am open to any hotel that matches my requests. I need it booked for 1 person, 3 nights starting thursday Sentence24: Yes all of them do. May I recommend something to you? Question: Who has spoken the sentence 23? (A) User (B) System
[EX A]:
Answer: (B) System