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

Ex Input:
Sentence1: Thank you for using the Cambridge TownInfo centre. Have a great day. Sentence2: City Centre North B and B is at 328a Histon Road. Please let me know if you would like restaurant recommendations. Sentence3: Hi, can you help me locate a hotel named City Centre B and B. Really looking forward to trying different restaurants. Sentence4: Are you still there? Were you able to book that? Can I get a reference number please? Sentence5: i am doing that right away sir. thank you Sentence6: Booking was successful. Reference number is : MOPETAI4 . Sentence7: Thank you, good bye Sentence8: Can you please help me book that hotel for 8 people. We'll be staying for two nights starting on Tuesday. Question: Who has spoken the sentence 5? (A) User (B) System

Ex Output:
Answer: (B) System


Ex Input:
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

Ex Output:
Answer: (A) User


Ex Input:
Sentence1: The address is saint andrew's street. Sentence2: Efes restaurant is in town centre, serving turkish food and is moderately priced. The address for it is King Street City Centre. Would you like to reserve a table? Sentence3: And a great day to you as well! Sentence4: Great! I booked you in at 18:45 on a Sunday. Your reference number is RZD2U6C2 . Sentence5: We have many colleges, some with an entrance free and some without. Do you have a preferred location or cost concern? Sentence6: I will take one that you recommend. I will need the postcode and address. Sentence7: I am looking for a restaurant called Efes Restaurant. Sentence8: Wonderful. Thank you so much for this! Have a great day. Sentence9: How about churchill college? Address is storey's way, postcode cb30ds. Anything else I can do for you? Sentence10: Can I get the postcode as well for it? Sentence11: The postcode is cb30ds. Sentence12: Thanks. I'd also like suggestions on attractions in town under the college category. Sentence13: Yes please, just for 1 on Sunday at 18:45. I will need a reference number as well. Sentence14: What's the address for Churchill College? Question: Who has spoken the sentence 7? (A) User (B) System

Ex Output:

Answer: (B) System