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

Sentence1: Thank you. That's all I need. Sentence2: I was able to book it, reference number is T2SNWPJA Sentence3: Okay, the Mahal of Cambridge serves indian food and is located in the centre. Would you like me to make a reservation for you? Sentence4: I am happy to help, what was the name of the place? Sentence5: Its the huntingdon marriot. I'd like to book it for 8 people on 2 nights starting on wednesday, and I'll need a reference number. Sentence6: Can you help me look up a particular hotel that I have in mind? Sentence7: Great, thanks for that. I'm also looking for information about a restaurant called mahal of cambridge. Sentence8: Yes please book a table on Wednesday for 8 people at 17:15, I'll need a reference number. Sentence9: It was my pleasure to help. Have a wonderful night. Take care. Bye. Sentence10: Your booking was successful reference number is 1QVLVD25 Question: Who has spoken the sentence 3? (A) User (B) System
Answer: (B) System

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: I just need to arrive by 19:15, so could you find one closer to that time, please? Sentence2: no, that's it. thanks for your help! Sentence3: You're welcome, have a great day. Sentence4: The next train to be leaving from Stansted Airport is at 5:24 on Friday. It will get to Cambridge at 5:52. Sentence5: Could you tell me how long that train ride is? Sentence6: Are there any swimming pools in the area? Sentence7: Train TR1008 will arrive by 08:52. Should I get you tickets for that one? Sentence8: There's a train that leaves Stansted airport at 08:24 and gets to Cambridge at 8:52. I can look up an earlier or later one if you prefer Sentence9: Any trains from stansted airport? Sentence10: That ride takes exactly 28 minutes. Sentence11: There is one pool called the Parkside Pools on Gonville place. Will that work? Sentence12: The entrance fee is not available online at the moment. The phone number is 01223446100 if you'd like to call and check. Can I help you with anything else? Sentence13: Think I will take a dip there, can you let me know if there is an entrance fee? Sentence14: I need a train that leaves on Sunday. Question: Who has spoken the sentence 10? (A) User (B) System

Answer: (A) User