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

Q: 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

A: Answer: (A) User
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Q: Sentence1: Sure. What area would you like to stay in? Sentence2: yes postcode is cb39lh Sentence3: I'd like to stay on the westside, at a place with free parking and WiFi. Sentence4: Can you help me find a moderately priced place to stay? Sentence5: There is the Hobsons House. It is nice and is a 3 star guesthouse. Sentence6: Could you give me the postcode. Question: Who has spoken the sentence 4? (A) User (B) System

A: Answer: (A) User
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Q: Sentence1: The Alpha-Milton Guest House is in the north part of town at 63 Milton Road. Their postcode is cb41xa. Need anything else? Sentence2: I'm sorry, I haven't found a guesthouse that meets those requirements. Could you possibly stay at a higher rated place, or try a hotel room? Sentence3: Please show me a guesthouse with the lowest available rating. Sentence4: I'd be happy to help you. There are 24 guesthouses to choose from. Is there an area you'd like to stay in, or perhaps a certain price range? Sentence5: I'm sorry, there are no hotels that meet those criteria, either. Would you like to try different star ratings? Sentence6: Well, how about a moderate price range and a star rating of zero? Oh, and I don't need free parking. Sentence7: Yes, hi. Would you be able to suggest a reasonably priced guesthouse for our stay in Cambridge? Sentence8: There is no results for that match Sentence9: No, I'm looking for a hotel with 0 star rating and moderately priced. Sentence10: I'm sorry, I haven't found a guesthouse that meets those requirements. Could you possibly stay at a higher rated place, or try a hotel room? Sentence11: Yes that will work. I'll need the area, postcode and address, please. Sentence12: I'd like to visit a nightclub. Sentence13: The alpha-milton guest house is in the north with 3 stars, but there's no wifi nor parking. Will that suffice for you? Sentence14: Yes, I think there's been some confusion. Let's go back to lodgings for a moment. With no 0-star guesthouses with moderate pricing, how about a hotel instead? Question: Who has spoken the sentence 1? (A) User (B) System

A:
Answer: (B) System
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