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

[EX Q]: Sentence1: Sure. What area would you like to stay in? Sentence2: yes postcode is cb39lh Sentence3: I'd like to stay on the westside, at a place with free parking and WiFi. Sentence4: Can you help me find a moderately priced place to stay? Sentence5: There is the Hobsons House. It is nice and is a 3 star guesthouse. Sentence6: Could you give me the postcode. Question: Who has spoken the sentence 4? (A) User (B) System
[EX A]: Answer: (A) User

[EX Q]: Sentence1: Yes, please. For 5 people at 14:00 on monday. Sentence2: The camboats are located in the east, how's that? Sentence3: I do not have information on the fee. Sentence4: Ok, thank you. I'm also looking for a restaurant called don pasquale pizzeria. Sentence5: Your booking was successful with reference number 1RF57JD7 . Oh, by the way, your table will be reserved for 15 minutes. Enjoy! Sentence6: Have a lovely stay in Cambridge! Sentence7: Thank you for the reference number. Goodbye! Sentence8: That might be good. What is the entrance fee? Sentence9: Don Pasquale is in the centre. Would you like me to make a reservation? Sentence10: I'm looking for some boats in the East, actually. Question: Who has spoken the sentence 7? (A) User (B) System
[EX A]: Answer: (B) System

[EX Q]: Sentence1: Yeah, what's the price and departure time on TR5773? Sentence2: I would like to leave on Monday. Sentence3: Great. What is All Saint's Church's address and postcode, please? Sentence4: That's all I needed. Thank you for your help Sentence5: 09:15 and should depart from cambridge Sentence6: The departure time is 07:36. It is 17.60 pounds. Is there anything else I could help you with? Sentence7: Sounds good. What is their entrance fee? Sentence8: I don't really know. What do you suggest in the city center? Sentence9: There are none that will leave by 09:15 will the 09:36 be ok? Sentence10: Train TR5773 suits your needs. Is there anything else I can help you with today? Sentence11: Actually, I need to arrive by 09:15. Is there anything early morning on Monday from Cambridge to Norwich? Sentence12: They are located at jesus lane, and their postcode is cb58bs Sentence13: Thanks. I am also looking for a train from Cambridge to Norwich, could you help me find one? Sentence14: There are 19 trains that go to norwich from cambridge what time would you like to leave or arrive? Sentence15: Great, have a good day! Sentence16: I show 44 attractions in the centre of Cambridge. Was there a specific type of attraction you were looking for? Sentence17: There is much architecture here worth taking a tour of. I am a fan of All Saint's Church. Sentence18: I'm looking for attractions to go in the centre of Cambridge, please. Sentence19: Entrance to All Saints is free. Sentence20: Sure, there are 133 trains from cambridge to norwich. What day would you like to travel on? Question: Who has spoken the sentence 12? (A) User (B) System
[EX A]:
Answer: (A) User