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

[Q]: Sentence1: Okay great, have a good day. Sentence2: Yes, quite a few! There's Broughton House Gallery, the Whipple Museum of the History of Science, and more. Would you like to know more about them, or the others? Sentence3: Yes, can you book it for 3 people and get me the reference number? Sentence4: Primavera is at 10 King s parade CB2 1st, the phone number is 01233357708. What day would you like to board the train? Sentence5: Could I get the address, phone numbers, and postcodes of them please? I'm also looking for a train from cambridge to broxbourne. Sentence6: Can you find me a multiple sports attraction in the centre? Sentence7: No, actually. I am all finished. Thanks for the help. Goodbye. Sentence8: Train TR9580 departs from Cambridge at 10:01 on Sunday and arrives at Broxbourne at 11:01. Would that work for you? Sentence9: Sorry there's no multiple sports in the centre. Would you like to try a different area? Sentence10: There are 11 museums in the area. They are all free. There are several art museums, an archaelogy museum, and a science museum. Sentence11: Yes I would love some information. Sentence12: Are there any museums in the centre? Sentence13: Sunday, and it should arrive by 12:00. Sentence14: Booking was successful, the total fee is 42.96 GBP payable at the station . Reference number is : IRD8RUWO . Do you need help with anything else? Question: Who has spoken the sentence 2? (A) User (B) System
[A]: Answer: (A) User

[Q]: Sentence1: Have a good day! Sentence2: No thank you, that is all. Sentence3: I am looking for a train to London Kings Cross that departs after 08:15. Sentence4: The TR2000 leaves cambridge going to london kings cross on friday at 09:00. It arrives in london kings cross at 09:51. How does that sound? Sentence5: Yes. What do you have available? Sentence6: Are you departing from cambridge station? Sentence7: I'll be travelling on a Wednesday. Sentence8: That's great. Please book me two tickets. Sentence9: The booking was successful and the fee is 47.2 GBP payable at the station. Reference number is E2N0JHSY . May I assist you with anything else today. Sentence10: What day would you like to travel? Question: Who has spoken the sentence 3? (A) User (B) System
[A]: Answer: (B) System

[Q]: Sentence1: Well, I need to know the arrival time first. Sentence2: Yeah, that works. Can you recommend a 0 star hotel for me? Sentence3: it doesn't really matter. Moderately priced located in the centre. I need phone number, hotel type and if they have free parking or not Sentence4: I would like to leave after 11:15. Sentence5: I'd like it to be in the centre please. Sentence6: You're welcome, have a great day! Sentence7: I'm hoping to book a train from bishops stortford to cambridge. Please list all times for that route. Sentence8: Arrival time is 12:07 does that work for you? Sentence9: The TR0516 leaves Cambridge at 11:29 on Wednesday. Will that work for you? Sentence10: Yes I have two guesthouses and 1 hotel in that category do you have a preferred area? Sentence11: I need to leave Wednesday and arrive after 11:15. Sentence12: i suggest cityroomz. its a hotel in the moderate price range. their phone number is 01223327978 Sentence13: Great, thank you. That is all that I need. Sentence14: Unfortunately there are no trains meeting your criteria. Would you like me to look up another departure and arrival time? Sentence15: There's a total of 70 trains. Is there a particular time of day you would like to travel? Sentence16: Thanks for that information. What time you would like to leave? Sentence17: Does it have free parking? Sentence18: In the town centre there is one guesthouse and one hotel with 0 stars. Would you like the hotel or the guesthouse? Sentence19: Yes, they do have free parking at this hotel. Sentence20: no, i want that day and time please Question: Who has spoken the sentence 10? (A) User (B) System
[A]:
Answer: (A) User