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: Well, there are 12 guesthouses and 2 hotels in town that fit your criteria, they all offer free WiFi. Do you have a price range in mind or a star rating? Sentence2: Most definitely. Would you like to go ahead and book a reservation? Sentence3: Do you have a preference of type of lodging, star rating, or internet? Sentence4: I'd recommend a nightclub if you don't mind paying or a museum if you're looking to do something free. Sentence5: We have 44 places to visit in the centre, any specific preferences in mind? Sentence6: I'm sorry, the Acorn Guest House is a guesthouse. Is that acceptable or did you want a hotel specifically? I apologize for the confusion. Sentence7: It's located at 154 chesterton road, the postcode is cb41da, and you can reach them by phone at 01223353888. Sentence8: I'm looking for places to go in the centre area of town. Sentence9: Yes, I would. Can I get the address, area, and phone number? Sentence10: I don't care about any particular area to be honest. Sentence11: How about the acorn guest house? Sentence12: My favorite is the Cambridge Contemporary Art Museum and their phone number is 01223324222 and the post code is cb21su. Admission is free. When would you like a hotel? Sentence13: I would just like to know what is available. Oh I also need free wifi. Sentence14: As long as it has everything I've been asking for, I'm good. Sentence15: Thank you. That was all I needed. Goodbye. Sentence16: I'll repeat this: The hotel should be in the moderate price range and it should include free wifi and free parking. I don't care about the area. Sentence17: A museum sounds good. Do you have the poscode and phone number? I also need a place to stay that is moderately priced with free parking. Sentence18: I found 14 for you. Do you have a specific area you'd like? Sentence19: What would you recommend? Sentence20: I would like a hotel in the moderate price range and it should include free parking. Question: Who has spoken the sentence 16? (A) User (B) System

SOLUTION: Answer: (A) User

PROBLEM: Sentence1: Booking was successful. Your reference number is : 1F0GOZ1D . Sentence2: Can you try 4 nights instead? Sentence3: I recommen a and b guest house. Should I book that? Sentence4: We have 6 total guesthouses in the east, any more preferences? Sentence5: Not particularly. Do you have one you would recommend? Sentence6: Yes, I would like free wifi and a 4 star rating. Sentence7: I'm looking for a guesthouse in the east please. Sentence8: funky fun house would be nice for you Sentence9: Great, could I also find someplace near the hotel to go for fun? Sentence10: Unfortunately there are no rooms available for Wednesday in the East. Could I look at a different location or day? Sentence11: please, For 2 people for 5 nights starting on Wednesday Sentence12: I have six places, is there a price range you have in mind? Question: Who has spoken the sentence 6? (A) User (B) System

SOLUTION: Answer: (A) User

PROBLEM: Sentence1: Alright, have a nice day. Sentence2: I am departing from Cambridge and would like to be in Birmingham New Street by 20:45 at the latest. Sentence3: A later train would be better, what trains arrive around 20:00? Sentence4: The earliest train available is train TR4975 which departs at 5:01 and arrives at 7:44. Can I book that for you? Sentence5: Cafe jello gallery's post code is cb30af. Sentence6: That would be train TR5867 departing at 18:01 and arriving at 20:44. Would this work better for you? I can help you book this one if you like. Sentence7: Where are you leaving from? Sentence8: I'm also looking for a train that goes to Birmingham New Street and leaves on Saturday Sentence9: Greetings, I am looking for a museum to visit on the west side of town. Sentence10: The closest arrival to 20:00 is TR2815, departing at 18:01 and arriving at 19:44. There is also one arriving at 20:44. Would that be preferable? Sentence11: Can I get the postcode for that museum please? Sentence12: That won't be necessary. Thank you for your help that is all I need today. Sentence13: You can find the cafe jello gallery at 13 magdalene street and it's free! Sentence14: What is the departure time for the one arriving at 20:44? Question: Who has spoken the sentence 1? (A) User (B) System

SOLUTION:
Answer: (B) System