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

[Q]: Sentence1: Enjoy your day. Good bye. Sentence2: The address is colville road, cherry hinton. Sentence3: That is all I need, thank you. Sentence4: Sure, I can get you aboard a 15:21 arriving at 17:06. Would you like me to book a seat aboard TR9839? Sentence5: Sounds good. What is the postcode, please? Sentence6: You're welcome! Have a great day! Sentence7: Of course. The Cherry Hinton Village Centre has multiple sports in the east end of town. Sentence8: There are quite a few running all day to many different stations. Where would you like to go? Sentence9: I need a train leaving cambridge on thursday. Sentence10: I would like to go to Leicester and get there by 18:45 Sentence11: The postcode is cb19ej. Is there anything else I can help you with? Sentence12: Good bye. Sentence13: Thank you for using our service. have a good day! Sentence14: Oh wait! Before you go, can you give me some information on the cherry hinton village centre? Sentence15: Yes, may I have their address, please? Sentence16: Not right now. Thanks for the information though! Have a great day! Goodbye. Question: Who has spoken the sentence 4? (A) User (B) System
[A]: Answer: (A) User

[Q]: Sentence1: The Lensfield does have free wifi. Their phone number is 01223355017 and their postcode is cb21en. Sentence2: First, can you give me the phone number, postcode, and tell me if they have internet? Sentence3: Is it a guesthouse? I'd really like a guesthouse with 3 stars, if possible. Sentence4: That is perfect, thank you for your help. Goodbye. Sentence5: Unfortunately, I can't find a 3-star expensive guesthouse with free parking. Would you like me to find something else? Sentence6: Sure, The Lensfield hotel is in the south. It is very nice, can I book it for you? Sentence7: Express by Holiday Inn Cambridge is an expensive hotel with free parking. Their phone number is 01223866800. Sentence8: I'm looking for an expensive place to stay with free parking please. Sentence9: Let us know if you have any more questions! Sentence10: How about a hotel instead of a guesthouse? Question: Who has spoken the sentence 2? (A) User (B) System
[A]: Answer: (A) User

[Q]: Sentence1: I would suggest la gardenia. Sentence2: Booking was successful. The table will be reserved for 15 minutes. Reference number is : 3BCC8OGU . Sentence3: Indeed we do! 44 of them, in fact. We have nightclubs and concerthalls as well as museums and theatres. What strikes your fancy? Sentence4: You're welcome, have a great day! Sentence5: Do you have any great places to visit in the centre? Sentence6: Can you book that for 2 people at 11:30 on friday? Sentence7: Not really, what do you suggest, and can you provide address and phone number? Sentence8: i dont have anything available. for that. Do you have another choice Sentence9: Thank you. That was all I needed. Sentence10: Do you have a price range? There are both cheap and expensive options. Sentence11: Ok, what about mediterranean food? Sentence12: Primavera is a museum in the centre located at 10 king s parade. The phone number is 01223357708. Sentence13: Price range doesn't matter. Sentence14: Great I'm also looking for a tuscan restaurant in the centre of town too Question: Who has spoken the sentence 13? (A) User (B) System
[A]:
Answer: (B) System