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

[Q]: Sentence1: You're welcome. Is there anything else I can help you with? Sentence2: I am looking for a 3 star hotel to stay in. Sentence3: Thank you. What's the travel time? Sentence4: No, that is all I need. Thanks! Sentence5: I reserved Wednesday night at the University Arms Hotel for 5 people. Your reference number is GM90EY8A . Is there anything else? Sentence6: travel time is 47 minutes Sentence7: Lets try just booking it for one night. Sentence8: The hotel should be in the expensive price range. Sentence9: Okay, I've got two that fit the bill. One in the centre of town and one in the south. Do you have a preference? Sentence10: I am very sorry, but I was unable to book a reservation for you. Would you be willing to book a later day or would you be willing to have a shorter stay? Sentence11: I do, yes. I would like to stay in the center of town. I need it to fit five people, for 3 nights, starting Wednesday afternoon. Sentence12: Great! I will need 5 tickets. Sentence13: same day as my hotel booking. Sentence14: You are booked for Train Tr5556, your reference number is JA6WAOJC . Sentence15: I do have a four star hotel in the centre of town, but it is also unable to accommodate your guests for 3 days. Can you adjust your length of stay? Sentence16: Sure I will be able to book you a train, on what particular day will you want to travel? Sentence17: Can we book the other expensive 3 star hotel for one night starting on wednesday? Sentence18: I apologize. One night is not working either. There are guesthouses. Sentence19: How many tickets do you need? Sentence20: There are 6, 3 start hotels in Cambridge. Do you have a preference for the part of town it is located in? Sentence21: No trouble at all, I hope you have a wonderful stay! Sentence22: What about the 4 star hotels? Sentence23: Yes, I also need a train leaving after 18:30 from kings lynn to cambridge. Sentence24: Thank you very much. Question: Who has spoken the sentence 4? (A) User (B) System
[A]: Answer: (A) User


[Q]: Sentence1: Sure! The phone number is 01223452587, the postcode is cb58bs, and that is in the centre area. Sentence2: That sounds great to me. Can I get the phone number, postcode, and area please? Sentence3: You are booked into Prezzo which is moderately priced on the west side. Your reference number is G2FIPHUL . Is there anything else? Sentence4: Great! I think you've covered it all. I don't need anything else. Thank you! Sentence5: Is there one that serves Italian food? Sentence6: You're quite welcome. Just let us know if you need any further assistance. Have a great day! Sentence7: There are none in the area that serves Welsh food, would you like to look for another type of cuisine? Sentence8: I'd like a moderate price range, please. Sentence9: I have found 5 attractions. They are all in the centre. Would you like to visit all saints church? Sentence10: There are 15 italian restaurants. Do you have preference in food price or area? Sentence11: I'm looking for a place to dine that serves welsh food. Sentence12: I am also looking for a place to go, anything with architecture. Sentence13: I don't have an area preference, but I would like to book a table for 6 people at 16:45 on wednesday. Sentence14: I have 5 moderately priced Italian restaurants. Do you have a preference on area, they are spread around the east, west, south, and centre. Question: Who has spoken the sentence 3? (A) User (B) System
[A]: Answer: (B) System


[Q]: Sentence1: That is all for now. Thank you for the help. Sentence2: I not need internet. I have no preference on parking. Sentence3: You're welcome and enjoy your stay. Sentence4: I just need to know what your price range is and how many stars you need? Sentence5: I would like a 0 star hotel. Sentence6: sure, their phone number is 01223354382. anything else today? Sentence7: Can you book it for 6 people. We will need it for 4 days starting on Saturday. I also need a reference number. Thanks Sentence8: Yes, I'm looking for a hotel in the centre of town. Sentence9: What can you tell me about the bangkok city restaurant? Sentence10: I have booked a room for Saturday at the cityroomz hotel. Your reference number is 4AXQUT6U . Is there anything else I can help you with? Sentence11: I sure can! Your booking was successful. The table will be reserved for 15 minutes.Reference number is : QOQA5GZZ . Is their anything else I can help you with? Sentence12: Can you book a table there for me? There will be 6 of us at 16:45 on Saturday. Sentence13: There are five in the centre of town. Do you need parking or wifi? Sentence14: You might want to try CityRoomz. Question: Who has spoken the sentence 9? (A) User (B) System
[A]:
Answer: (B) System