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: No thank you. Im finished. Sentence2: Allenbell is my favorite. It has four stars. The phone number is 01223210353. Shall I book that for you? Sentence3: Is there anything else I can help you with? Sentence4: I found 10 places, do you have a hotel style preference of gueshouse or hotel, or an area you prefer? Sentence5: You're welcome. How many people are in your party, and when will you arrive? Also, how long would you like to stay? Sentence6: I'm looking for a cheap place to stay that does not need free parking. Sentence7: It sounds fine. Do any of them include free wifi? Sentence8: There are three cheap guesthouses in the east area, however, they all have parking. Will this be okay, or would you like to look at a different area or price? Sentence9: Okay. Have a good day. Sentence10: That'd be great. Thank you. Sentence11: All of them include free wifi. Sentence12: What's the phone number and star rating of your favorite one? Sentence13: I will book on my own, thanks. Sentence14: I don't have a preference for the type but I would like a place in the east. Question: Who has spoken the sentence 7? (A) User (B) System

SOLUTION: Answer: (B) System

PROBLEM: Sentence1: I am planning a trip in Cambridge and need a place to stay with free parking. Sentence2: Excellent. Can I book that for 2 people for 2 nights starting on Tuesday Sentence3: I have many different options available. Let me ask, do you have a certain price range or area in mind? Sentence4: Thanks i will find you one.Thanks a lot Sentence5: I have no particular price range, but would like a guesthouse in the north part of town. Sentence6: That narrows it down to about 9 different options. Most offer both free parking wifi. If you would like my personal recommendation, I would say go with the Hamilton Lodge. Sentence7: Booking was successful. Reference number is : 152UJWIK . anything else today? Sentence8: Yes, I need to find a train on Tuesday from Cambridge to London Liverpool Street. Question: Who has spoken the sentence 4? (A) User (B) System

SOLUTION: Answer: (A) User

PROBLEM: Sentence1: Thank you. Can you book a taxi to take me there? Sentence2: Please show me where the nearest hospital is Sentence3: That's all. Thank you, good bye. Sentence4: Nevermind, I don't need a taxi. Thanks for your help. Sentence5: Thank you for using Cambridge TownInfo centre. Have a nice day! Sentence6: Yes, what time would you like the taxi to pick you up? Sentence7: What can I help you with? Sentence8: The nearest hospital is The Addenbrookes Hospital located at Hills Rd, Cambridge Postcode CB20QQ. Question: Who has spoken the sentence 3? (A) User (B) System

SOLUTION:
Answer: (B) System