You are shown a conversation between a user and system. Identify who has spoken the indicated sentence based on the conversation.
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Question: Sentence1: Thanks! I'm all set now. Bye! Sentence2: i am looking for a place to stay. The hotel should have a star of 4 and should include free wifi. Sentence3: I have several, when is your stay? Sentence4: A white bmw is booked for you. The contact number is 07793421858 Sentence5: There are 21 options. What type of food do you like? Our restaurants are quite diverse. Sentence6: a and b guest house is very nice Sentence7: Okay, now I would like to find a restaurant in the centre that is also in the moderate price range Sentence8: Yes it is in the moderate price range, what help can I help with? Sentence9: Ah, it was just a temporary lapse, it is back up now. I have you booked. The reference number is K9PYGG5A . Sentence10: Booking was successful. Reference number is : ZCRPOLK8 . anything else? Sentence11: Yes! What do you mean it's down? I need a place to eat! Sentence12: Choose one and surprise me. And book it for 6 people on thursday at 13:15. I'll need the reference number Sentence13: I'll need it to pick me up from the hotel and arrive at the restaurant at least 10 min before our reservation? Sentence14: You are welcome and good bye Sentence15: What is the name of the restaurant you booked the reservation at? We will also need a taxi to get there from the guesthouse. Sentence16: It was restaurant one seven, what time would you like that taxi? Sentence17: Can you confirm a and b guest house is in the moderate price range, please? Sentence18: It appears our booking system is down. Is there anything else I can do for you? Sentence19: book for 6 people and three nights starting on thursday. Sentence20: Do you have one that is a guesthouse? Question: Who has spoken the sentence 4? (A) User (B) System

Answer: Answer: (A) User

Question: Sentence1: Great, have a wonderful day and enjoy your taxi ride, thank you! Sentence2: What time would you like to arrive? Sentence3: No, that is all I need today. Thanks! Sentence4: i want to book a taxi. The taxi should depart from la Margarita and should go to riverboat Georgina. Sentence5: I have a white tesla booked. The contact number is 07032807056. Anything else today? Sentence6: I would like to arrive by 17:15. Question: Who has spoken the sentence 2? (A) User (B) System

Answer: Answer: (A) User

Question: Sentence1: I also need to find a place to visit in the west part of town. Sentence2: No, find me one that leaves after 08:00 please. Sentence3: Their postcode is cb30ag Sentence4: Can you book for 8 people? Please include the reference number. Sentence5: Thank you, that will do it for me today. Sentence6: I'm going to Liverpool Street in London. Sentence7: Your reference number is 8P0JZI40 and you'll owe 132.8 GBP. Anything else I can do? Sentence8: The phone number is 01223332138. Sentence9: Enjoy your time at the college! Sentence10: I have train TR5504 that leaves at 11:59 and arrives by 13:27. Would this fit your schedule? Sentence11: Can you give me the phone number, please? Sentence12: I have 10 trains going to Liverpool Street from Cambridge on Thursday. What time do you need to arrive? Sentence13: There's nothing in particular. Could you recommend something fun to do? Sentence14: I want to arrive by 15:00. Sentence15: TR2715 leaves at 09:59 and arrives by 11:27, does this suit your needs better? Sentence16: Of course. Where are you headed? Sentence17: Is there anything in particular you'd like to see in the west part of town? Sentence18: The magdalene college sounds like a blast and its also free. Sentence19: Can you find me a train on thursday? I am leaving from cambridge. Sentence20: Great! What is their postcode please? Question: Who has spoken the sentence 14? (A) User (B) System

Answer:
Answer: (A) User