TASK DEFINITION: You are shown a conversation between a user and system. Identify who has spoken the indicated sentence based on the conversation.
PROBLEM: Sentence1: I'm leaving from Cambridge and going to Birmingham New Street. Sentence2: There appear to be hourly trains from 05:01 to 23:01. Do you know what day and time you'd like to travel? Sentence3: You are welcome. Have a great trip. Bye. Sentence4: Wednesday and it should leave after 18:00. Sentence5: Can you also direct me to some attractions in town in the east? Sentence6: Ok, I have booked you 3 seats on that train. Your reference number is MI5RMEHQ . You'll need to pay 225.3 GBP at the station. Anything else I can do? Sentence7: That sounds good. Can you book that for me for 3 people? Sentence8: I'm planning my trip there, but need to find a train for when I depart. Could you help me with that? Sentence9: The TR1766 leaves at 18:01 and arrives at Birmingham new street at 20:44. Would that be OK? Sentence10: The address is 5 greens road and the phone is 01223902168. Is there anything else that i can do for you? Sentence11: That would be perfect. Can you give me the address and the phone number? Sentence12: Sure. From where will you be departing, and what is your destination? Sentence13: No, that is all. Thanks for your help. Sentence14: Of course! There are several attractions in the east. I'd suggest Cambridge Artworks; it's a museum with free entrance. Would that work for you? Question: Who has spoken the sentence 3? (A) User (B) System

SOLUTION: Answer: (B) System

PROBLEM: Sentence1: Okay, the TR8944 leaves at 15:39 and arrives by 17:07. Would you like me to book tickets for you? Sentence2: There are 10 trains leaving fro Liverpool Street on Thursday. Did you have a departure time in mind? Sentence3: Okay I have booked you and your reference number is WLUOQKEV . Sentence4: rosa's bed and breakfast is in the cheap price range Sentence5: I'm looking for a train departing from london liverpool street leaving on thursday. Sentence6: Do you need a taxi? Sentence7: Goodbye, and thanks again. Sentence8: Yes, I don't want to leave for Cambridge until 15:00 at the earliest. Sentence9: Sure thing. Thanks for letting us help you today! Sentence10: Thank you. I also need a hotel in the south. Sentence11: then thanks for inquiring with us. Sentence12: I don't need a taxi, thanks for asking Sentence13: No price range but I do want a 4 start. Sentence14: Yes, for 6 people. Sentence15: What price range are you interested in? Sentence16: That sounds great. I'll need a reservation for 6 people for 4 nights on Thursday. Sentence17: I've gone ahead and booked that for you. Your Reference number is : EUZ34KY9 . Is there anything else I can assist you with today? Sentence18: No, that takes care of everything I need. Thanks! Question: Who has spoken the sentence 7? (A) User (B) System

SOLUTION: Answer: (B) System

PROBLEM: Sentence1: Booking was successful, the reference number is Y9ZD16I2, any further questions? Sentence2: The cost for the train leaving Stevenage at 13:54, arriving Cambridge at 14:43 is 10.24 pounds, would you like me to book that for you today? Sentence3: Price is not an issue for me. Please recommend one of them for me. Sentence4: the south . and make it a guesthouse with free parking also. Sentence5: I don't have a departure time preference but I would like to arrive by 15:45. Sentence6: Sure! I recommend Rosa's Bed and Breakfast. Would you like to book a room? Sentence7: I would be happy to help with your request, but first I will need to know what time you'd like to leave/arrive at. Sentence8: That is all I needed today. Sentence9: what's the train ID? Sentence10: I'd be happy to help. Which day would you like to travel? Sentence11: Thank you for calling. I hope you enjoy your trip to our town. Goodbye. Sentence12: What is the price for that one? Sentence13: i have 3 guesthouses in the south. two are moderately priced and one is cheap. which do you choose? Sentence14: There are five trains to Cambridge on Saturday- the latest arrives at 14:43. Would you like me to book it for you? Sentence15: I am looking for information and could use your help finding a train. Sentence16: What area would you like to stay in? Sentence17: TR6607. Would you like me to book you on? Sentence18: I also need a hotel. I don't care about parking but it does need free wifi. Sentence19: Yes please. I need a room for 8 and 2 nights starting from Saturday. Sentence20: I need to leave stevenage on saturday. Question: Who has spoken the sentence 10? (A) User (B) System

SOLUTION:
Answer: (A) User