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

[Q]: Sentence1: You are booked for a red lexus with the contact number 07866626052. Sentence2: I'm going to loch fyne. Sentence3: Thank you. I am now finished. Sentence4: Sure! when would you like to arrive? Sentence5: Great! And what is your destination? Sentence6: I would like to arrive by 01:15. Sentence7: I'm glad we could help. Have a good day. Sentence8: Please help me reserve a taxi from saint catharine's college Question: Who has spoken the sentence 2? (A) User (B) System
[A]: Answer: (A) User


[Q]: Sentence1: Sorry. TR2052 departs from leicester and the destination is cambridge. It leaves at 15:09 on Wednesday. Would you like me to book it for you? Sentence2: Yes, I only need 1 ticket for myself. Sentence3: There are 13. I could recommend Trinity College on Trinity Street. Or would you like information about one of the others? Sentence4: I would like to arrive by 17:00 in leicester. Sentence5: I would like help finding a college to visit in the centre of town. Sentence6: Of course. The address is Trinity Street, postcode is CB21TQ, and the entrance fee is one pound. Can I help you with anything else? Sentence7: Yes and please give me the reference number. Sentence8: OK, I've booked one ticket for you on TR0451 from cambridge to leicester, arriving at 16:06. Ref# 8OZNJHMO . Can I help you with anything else today? Sentence9: That sounds good. Could you give me the entrance fee, phone number, and postcode? Sentence10: Certainly. Just to verify, are you traveling alone? You would only like one ticket? Sentence11: TR3702 LEAVES AT 05:00 CAN I BOOK THAT ONE FOR YOU? Sentence12: How early do you wish to arrive? There are 11 trains that will get you there before 17:00. Sentence13: Thank you for using our service. Have a good night. Goodbye. Sentence14: Does this train go to Leicester from Cambridge? Sentence15: Yes I'm also looking for a train that leaves wednesday and arrives by 17:00. Sentence16: I think that is all I need, thank you. Question: Who has spoken the sentence 4? (A) User (B) System
[A]: Answer: (A) User


[Q]: Sentence1: Is there a particular time you'd like to leave or arrive by? Sentence2: I just needed the info, no booking just yet. Thanks! goodbye. Sentence3: You are welcome. Have a wonderful day. Goodbye. Sentence4: Thank you for using or system. Good bye. Sentence5: Yes let's go ahead and make it for just 1 night then. Sentence6: Booking was successful. Your reference number is AAO2UA2S . Can I help you with anything else? Sentence7: Have a great day Sentence8: I have the a and b guesthouse that has wifi and is moderately priced. Sentence9: I actually need a place to stay as well. Something in the east please. Sentence10: No, that should do it! Thank you very much for your help. Sentence11: Booking was unsuccessful. Would you like to check in on a different day or shorten your stay? Sentence12: We have 6 guesthouses and one hotel on the eastside, you looking for any specific amenities or have a price range in mind? Sentence13: Thank you and have a great day. Sentence14: Sounds great, could you book it for 3 people for 2 nights starting on the same day as my train? Sentence15: Ok I can book you on TR8177 from Kings lynn to Cambridge on Tuesday. How many seats do you need? Sentence16: I'd like a train leaving on Tuesday from Kings Lynn, please. Sentence17: I would like to arrive in cambridge by 17:30. Sentence18: I am looking for something that is moderately priced with free wifi. Question: Who has spoken the sentence 10? (A) User (B) System
[A]:
Answer: (A) User