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

Sentence1: 4 people please. Sentence2: What area is it in? Sentence3: I'm looking for a hotel to stay in. I prefer something in the expensive price range, and also one that offers free parking. Sentence4: I also need a train going to Leincester from Cambridge. I want to leave on Monday and arrive at 13:00. Sentence5: Booking was successful. Reference number is : H9CE5KK3 . Can i help you with anything else? Sentence6: The gonville hotel is in the centre area and the lensfield hotel is in the south area. Would either of these hotels work for you? Sentence7: The gonville hotel may be a good option. Sentence8: Which day would you be arriving at the hotel, and how long will you be staying? Sentence9: yes can you please. thank you Sentence10: In that case, you'd prefer The Lensfield. Do you need to book a room? Sentence11: Wednesday for 4 people, just one night. Sentence12: i want the one in the south Sentence13: I'd like a place with 3 stars. Sentence14: The Lensfield Hotel or Gonville Hotel both meet your criteria. Would you like me to make a reservation for you at either option? Sentence15: How many tickets do you need? Sentence16: Your tickets have been booked. Your reference number is 6F8IVDHH . Question: Who has spoken the sentence 4? (A) User (B) System
Answer: (A) User

Sentence1: Not a problem and thank you for choosing Cambridge TownInfo Centre Sentence2: Yes I have locations on the east, north and city center. Any preference for location? Sentence3: Thank you very much for helping me today! Sentence4: We can certainly help with that. Are you heading to the boat or to the hotel, and what time do you need the taxi? Sentence5: Gonville Hotel is a three star hotel with parking and is in the centre area. Does this sound good? Sentence6: Yes, I also need to get a taxi to go between them, please. Sentence7: I'd be happy to make that reservation for you. What days would you like to stay there, and how many are in your party? Sentence8: I would like a three star hotel, do not care about price. Sentence9: Great! I also need a hotel while I am there. I do need free parking but internet is optional. Sentence10: I am looking for a place to get a boat. Can you help me? Sentence11: Alright. There are a total of 29 hotels and guesthouses available. Is there a certain price range or area you wish? Sentence12: Yes that sounds fine. I would like to book a reservation please. Sentence13: I was able to get a red volvo for you phone number 07586716905 Sentence14: Can you make that for starting monday, 4 nights and 7 people? Sentence15: I need to leave the hotel by 5:00. Sentence16: The booking was successful! Your reference number is UR6L3NLS . Anything else I can help with? Sentence17: No problem. There is the Riverboar Georgina which is located in the north side of town. The address is Cambridge Passenger Cruises, Jubilee House and the postcode is cb43ax. Sentence18: No, I don't have any preference. You can just pick whichever one looks best and give me the phone number, address, and area. Question: Who has spoken the sentence 14? (A) User (B) System
Answer: (A) User

Sentence1: Actually I think I'll travel there myself thank you. Sentence2: I need to make a reservation at a hotel called El Shaddai Sentence3: Is there anything else I can do for you today, then? Sentence4: Okay do give us a call back if you need anything else. Sentence5: That's all, thank you so much. Sentence6: Sure! They're in the Centre area. They're cheap and offer internet connectivity. Sentence7: Great, I would like to book that hotel, please. Sentence8: Sure, could you tell me when you what day you would like to book your stay at the El Shaddai at 41 Warkworth Street? Sentence9: From what day do you want to book? Sentence10: Just gathering information about the hotel first. Could you tell me what area of the city they're in, the price, and if they have internet connectivity? Question: Who has spoken the sentence 9? (A) User (B) System

Answer: (B) System