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: Can I get a taxi to take us from the gallery to the restaurant? Sentence2: I'm looking for a museum with a restaurant. Sentence3: Yes please. I need the reference number too. Sentence4: Do you know of any restaurants in the centre of town that serve lebanese food? Sentence5: Yes I'd like one for Sunday for 19:15, there will be 8 of us. Sentence6: Great. Please get me their address. Sentence7: Booking was successful. The table will be reserved for 15 minutes. Reference number is : H570Z3KN . do you have any other questions Sentence8: Is it moderately priced? Sentence9: Yes. Ali Baba is moderately priced. Would you like me to make a reservation for you? Sentence10: No, that will be all thank you. Sentence11: Ali Baba is in the centre of town serving lebanese food Sentence12: Ok, a white audi will pick you up at cafe jello gallery and bring you to Ali baba by 19:15. You can contact the driver at 07646811518. Anything else? Sentence13: will you need to have all eight of you seated at the same table? Sentence14: How does the Cafe Jello Gallery sound? It is located in the west and does not have an entrance fee. Sentence15: You're welcome. Thank you. Sentence16: Cafe jello gallery can be found at 13 magdalene street. Is there anything else I can do for you? Question: Who has spoken the sentence 5? (A) User (B) System

SOLUTION: Answer: (B) System

PROBLEM: Sentence1: Sure, what area of town would you like to stay in? Sentence2: There are entertainment attractions in the east, south, and west areas. Which would work best? Sentence3: Any area is fine Sentence4: cherry hinton hall and grounds located in the east is a very nice place to visit. Sentence5: what is your price range to narrow down on our choices Sentence6: lovell lodge has a moderate price range. is that it? Sentence7: Sounds good, I will give it a try, can I also get a place ot stay with free wifi and parking? Sentence8: I am visiting Cambridge and want to see some entertainment. Sentence9: Preferably in the north. Sentence10: There are 2 hotels with 2 stars. There are also 9 guesthouses with 0-, 3- or 4-stars. Which do you prefer? Sentence11: I think I'd choose one of the hotels. Either is fine, could you recommend one? And give me it's price range? Sentence12: Yes that will be all, thank you. Sentence13: I'm open to any price range as long as it meets everything else I need. Sentence14: you are welcome any time Question: Who has spoken the sentence 11? (A) User (B) System

SOLUTION: Answer: (B) System

PROBLEM: Sentence1: What day did you want to check in? Sentence2: Yes. There will be six of us staying for two nights. Sentence3: There are many guesthouses that meet your criteria. Do you have a pricerange in mind? Sentence4: Thank you as well, let us know if you need help with anything else. Sentence5: I am looking for a place to stay. The hotel should be in the type of guesthouse and doesn't need to include internet Sentence6: I was able to book the Bridge Guest House for 6 people starting Tuesday for 2 nights. Is there anything else I can help you with? Sentence7: Yes the bridge guest house has free wifi. Can I book it for you? Sentence8: I have located 15 guesthouse types in the moderate price range. Do you have a preference for a particular area of town? Sentence9: I don't care about that. Sentence10: We have two in the south, a 4 star and a 3 star. Do you have a preference? Sentence11: I'm looking for something that would be in the middle price point. Sentence12: Does it have free wifi? Sentence13: We are actually checking in starting on Tuesday. Sentence14: Nope, that's all I need for today. Thank you! Sentence15: Maybe the south? Sentence16: Of course. Reference number COIMDB7B . Can I help with anything else today? Sentence17: How about the bridge guest house? Sentence18: Yes, can i have a reference number please? Question: Who has spoken the sentence 4? (A) User (B) System

SOLUTION:
Answer: (A) User