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: How about the Ashley Hotel? It is on the north side of town, has 2 stars, free wifi and parking, and is moderately priced. Sentence2: Is that a 2 star hotel? Sentence3: Are there any available for less than $200 a night? Sentence4: Unfortunately, the rooms are unavailable for that day and time. Can I try a shorter stay for you or possibly a different day? Sentence5: Of course! The reference number is QZYSOMAW and the address is 74 chesterton road. May I help with anything else? Sentence6: No, it has 4 stars Sentence7: Can you make a reservation for 6 people for 3 nights starting on Wednesday. Sentence8: Yes, I was able to successfully book you for two nights. Is there anything else you need? Sentence9: The only 2 star hotels are in the north or the east. Do you mind staying in one of those areas? Sentence10: Nope, that's all I need. Thanks for your help! Sentence11: Can I have the reference number and address please? Sentence12: How about for 2 nights? Sentence13: We're glad to be of service, and please do not hesitate to contact us if you need more help while you're in Cambridge! Sentence14: Yes that would be fine with me Sentence15: There are several. Alexander Bed and Breakfast is cheap and is in the Centre. Would you like me to book that? Sentence16: Let's try a hotel type with free parking in the centre of town with a star of 2. Sentence17: Are there any rooms available in hotels with free parking? Sentence18: how about for 2 nights? Sentence19: Yes. Do you have a preference for the hotel's area or price range? Sentence20: I'm sorry. I have no 2 star hotels in the center of town. However, I have some in other parts of town. Would you care to modify your search criteria? Question: Who has spoken the sentence 10? (A) User (B) System

SOLUTION: Answer: (A) User

PROBLEM: Sentence1: That is all, thank you, goodbye. Sentence2: Is there anything else we can help you with? Sentence3: Goodbye. Sentence4: Ok. Thanks. Sentence5: I am looking for a restaurant in the south part of town and serving portuguese food. What is the address and phone number? Sentence6: Nandos is a portuguese restaurant in the south part of town. Their address is Cambridge Leisure Park Clifton Way and their phone number is 01223 327908 Question: Who has spoken the sentence 2? (A) User (B) System

SOLUTION: Answer: (A) User

PROBLEM: Sentence1: Can you book me a table please? Sentence2: Where would you recommend? Sentence3: Have a wonderful day. Sentence4: My pleasure, there is something for everyone, we have over 40 attractions in that area? What kind of activity do you have in mind? Sentence5: I would recommend Cambridge University Botanic Gardens, located on Bateman Street, Postcode cb21jf. It does cost 4 pounds to enter. Phone is 01223336265. Sentence6: Sounds good, thanks! I'm also looking for information about a restaurant called Eraina. Sentence7: I don't have any info on shopping sites but I do have info on museums, architecture, cinema and the like. Sentence8: Book it for 14:30 on Wednesday for 5 people Sentence9: Your booking was successful. Your reference number is INFN2J8M . Is there anything else I can do for you today? Sentence10: Can you help me find a place to go in the centre? Sentence11: Shopping and maybe a mini mall and I need address, postcode, and attraction type Sentence12: Thank you that is all I need. Sentence13: Yes Eraina serves European food and is located in the center and is expensive. Sentence14: I can assist you with that. How many guests are in your party and what date and time would you prefer? Question: Who has spoken the sentence 12? (A) User (B) System

SOLUTION:
Answer: (A) User