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: Yes. Book for 2 people for 4 nights on thursday and I'll need the reference number too please Sentence2: Okay, great! Enjoy your day. Sentence3: I have your table for 2 booked at the Bedouin. Would you like anything else? Sentence4: Your booking was successful. Your reference number is Q5BKFIC3 Sentence5: The reference number is 0LG9G1BT . Is there anything else I can help you with? Sentence6: We have one restaurant, the Bedouin. Would you like me to make you a reservation? Sentence7: I need the reference number too please. Sentence8: 2 people for Thursday at 19:00 please Sentence9: I was unable to find anything matching that. Would you like to try again? Sentence10: How about African food in general? Sentence11: yes please. Sentence12: The Limehouse is a moderately priced guesthouse on the north side of Cambridge. They are a 4-star establishment and offer free parking and Internet. Would you like to make a reservation? Sentence13: Thank you. Can you find us some good eats, too? We'd like something moderately priced that serves South African cuisine. Sentence14: I would be happy to book a reservation for 2. What day are you looking at and time? Sentence15: I am looking for a hotel in the Cambridge area called the limehouse. Sentence16: Thank you that is all I need. Question: Who has spoken the sentence 14? (A) User (B) System

SOLUTION: Answer: (A) User

PROBLEM: Sentence1: It is in the centre part of town. Sentence2: That's all. Thank you, goodbye! Sentence3: What is its phone number? Sentence4: Okay, thanks. And what area is it in please? Sentence5: Michaelhouse Cafe is at St. Michael's Church Trinity Street City Centre. How does that sound? Sentence6: I am looking for a restaurant in the expensive price range that serves Belgian food. Sentence7: The phone number is 01223 309147. Sentence8: I have nothing available meeting your request, would you like to try a different price range or another type of cuisine? Sentence9: What is the address of the restaurant? Sentence10: Yes, is there any expensive European eateries? Sentence11: That's good, thanks. Sentence12: Would you like anything else? Sentence13: Yes, there are 4 expensive restaurants serving european food. Which area would you like? Sentence14: your welcome. thanks for calling Question: Who has spoken the sentence 1? (A) User (B) System

SOLUTION: Answer: (B) System

PROBLEM: Sentence1: thanks! Sentence2: The booking was successful for Tuesday at 15:00 for a party of 2. Your reference number is H2VOXSP6 . Is there anything else I can help you with? Sentence3: I did not find any restaurants with that criteria. Do you want to change the area? Sentence4: Would 15:00 on the same day work? Sentence5: You are welcome! Sentence6: Looking for a restaurant in the east side that serves basque food. Sentence7: How about Curry prince? It is indian food. Sentence8: I was unable to complete your booking. Would you like to try another day or time slot? Sentence9: Perfect! I would like a table for 2 at 16:00 on Tuesday Sentence10: Will you look for indian food in the east? Question: Who has spoken the sentence 3? (A) User (B) System

SOLUTION:
Answer: (B) System