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

Q: Sentence1: I would like a restaurant serving swedish food in the north part of town. Sentence2: I don't care. Sentence3: What is the address, phone number, and price range? Sentence4: I'm sorry but there are no Swedish serving restaurants in that area. Would you like to expand your search? Sentence5: Thank you goodbye. Sentence6: City Stop Restaurant is an expensive restaurant on the North side of town. Sentence7: The Royal Spice restaurant has a cheap price range. Sentence8: Is there a restaurant on the North side of town? Sentence9: How about indian food? Sentence10: it's address is Victoria Avenue Chesterton, and phone number is 01733 553355. Sentence11: There are several restaurants in the north part of town. Do you have a preference of price range or type of food? Sentence12: Good bye. Question: Who has spoken the sentence 2? (A) User (B) System

A: Answer: (A) User
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Q: Sentence1: Actually, I'm all set. Thank you! Bye! Sentence2: OK, great. will it be the same two people as on the train and starting on Monday? or do you have different needs for lodging? Sentence3: What is the price for that trip? Sentence4: Could you clarify if you need the reservation for 1 or 2 people please? Sentence5: Certainly, where will you be departing from? Sentence6: It look like the TR0532 is what you are looking for departing Bishops Stortford at 7:29 and arriving in Cambridge at 8:07. Would you like to book? Sentence7: The postcode for Worth House is cb41da and yes, it has internet! Sentence8: I would prefer the hotel be in the north part of town. Sentence9: I don't need to book today, thanks. Can you get me the postcode of one of them? Oh, and please make sure the one you choose has internet! Sentence10: Okay you sure you will not require a booking? Sentence11: I need a cheap hotel with free parking. Sentence12: The fare is 10.10 GBP per ticket. Sentence13: Okay let me see if I can book that for you. Sentence14: I need reservations for 2. Sentence15: Hi I am looking for a train to arrive in Cambridge by 08:15. Sentence16: Nope, same people. Sentence17: I've booked your tickets for the 7:29 train from Bishops Stortford, reference ZHT6R80S . Can you give me more information about the type of hotel you'd like? Sentence18: 1 person 5 nights please Sentence19: There are 10 total hotels, do you have a preference for area? Sentence20: I'd be happy to book that for you, what day will you be arriving on, and for how many nights? Sentence21: I'll be leaving from Bishops Stortford on Monday. Sentence22: I will go ahead an book at the Worth House. Sentence23: City centre north b and b and Worth house are both guesthouses and located in the north. Would you like me to book one for you? Sentence24: I need to make a booking for 2 people and can you find me a place to stay in the north? Question: Who has spoken the sentence 17? (A) User (B) System

A: Answer: (B) System
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Q: Sentence1: Your booking was successful, the total fee is 14.32 GBP payable at the station. Your reference number is 4YAT8PVP . Sentence2: Does that depart from broxbourne station? Sentence3: The price is 14.32 pounds per person. Sentence4: I'm glad I could help you. Goodbye. Sentence5: I would prefer to leave after 13:45 please Sentence6: Alright, I have train TR4813 that leaves Sunday at 14:32 from Broxbourne. Will this work better for you? Sentence7: I will do so... and you too. Sentence8: the train id is TR5219 and it leaves london kings on friday Sentence9: Is there a certain time of day you would like to travel? Sentence10: Sorry. I need to narrow down the 133 trains from Broxbourne to Cambridge. First, what day do you want to leave? Sentence11: Thank you, I will buy a ticket for 14.32 pounds for train TR4813 leaving Sunday at 14:32. Sentence12: Yes as long as it is going to cambridge that sounds fine. I'll need the price also please. Sentence13: I'm looking for a train going to cambridge please. Sentence14: thanks for inquiring with us. have a nice day Sentence15: Thank you so much, have a wonderful day. Sentence16: I want to leave on sunday Question: Who has spoken the sentence 15? (A) User (B) System

A:
Answer: (B) System
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