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: I think you'd like TR8842 train, it costs 23.60 pounds. Sentence2: Thanks, it would be helpful if you also told me what time TR8842 leaves. Anyhow, I just got paid. Can you find me a high-end eatery serving European cuisine? Sentence3: No thank you. I'll just need the address for an expensive restaurant that serves European food. Sentence4: Train TR8842 leaves london kings cross at 15:17 on friday and arrives at cambridge at 16:08. Can I provide you more information or book it for you? Sentence5: Arrival time is not important. I just need to leave after 14:15. I will need the train ID and the price, please. Sentence6: Sorry! As I said, it's at Free School Lane City Centre. Can I help you with anything else? Sentence7: Hi, could you help me find a train going to Cambridge? Sentence8: Is there a time you would like to arrive by? Sentence9: Where and when are you departing from? Sentence10: I would like to leave on Friday Sentence11: No, that's it. Thank you. Sentence12: which side of town is most appropriate for you? Sentence13: Have a lovely day, goodbye. Sentence14: I am leaving from London Kings Cross after 14:15. Sentence15: I'm sorry, but I think you gave me the phone number. I need the address, please. Sentence16: I don't have a preference really, please recommend one. Sentence17: no. i just need the address Sentence18: What day would you like to leave? Sentence19: its address is 01223368786. is that it? Sentence20: How about the eraina located at Free School Lane City Centre. Would you like reservations? Question: Who has spoken the sentence 4? (A) User (B) System

SOLUTION: Answer: (A) User

PROBLEM: Sentence1: Ok, that would be great. Can I get the reference number please? Sentence2: Sure, and make me a booking for 7 people. Sentence3: I'll be departing from Cambridge on Wednesday. Sentence4: Yes I need a train going to birmingham new street leaving after 18:15. Sentence5: I have Hughes Hall, 01223334898, with free entrance. The broughton house gallery at 01223314960, also free. I don't seem to have any churches. Can I help you further? Sentence6: there are some great museums, colleges and churches for you to visit. Sentence7: Please recommend some worthwhile places to visit in the centre. Sentence8: Have a wonderful visit. Thank you for using Cambridge TownInfo Centre. Goodbye. Sentence9: I will go ahead and book that for you. Sentence10: Great, I would like to get some phone numbers for those places in the centre. Sentence11: Where will you be departing from, and on what day? Sentence12: Thank you. That's all I need for today. You've been a great help. Sentence13: There are five trains leaving on Weds. Do you want me to pick one to book? Sentence14: TR9236 leaves cambridge on wednesday on 19:01 and arrives at birmingham new street at 21:44. I have booked 7 tickets. Your Reference number is : 2BGY3ZRW . Question: Who has spoken the sentence 6? (A) User (B) System

SOLUTION: Answer: (A) User

PROBLEM: Sentence1: Great, thanks for all of your help! You have been wonderful! Sentence2: What is the post code, address, and entree fee? Sentence3: I don't have any Cantonese restaurants in the centre. I could try another cuisine or another area? Sentence4: What other local attractions are there to explore? Sentence5: There is one of those- it is called wagamama. Would you like to make a reservation? Sentence6: Your table is reserved. The reference number is BS73EYWV . Sentence7: The postal code is cb11ln, address is 98 King Street, and the entrance is completely free. Sentence8: You're very welcome! Text us back anytime, and have a wonderful visit in Cambridge! Sentence9: I have booked you a black volvo. The contact number is 07018935922. How else may I assist you today? Sentence10: There are several. Vue Cinema is a popular attraction. Would you like the address? Sentence11: Sure. Book it for 4 people at 11:45 on a saturday. Sentence12: Actually, I'm in the mood for Cantonese food. Are there any like that? Sentence13: Hello! This is my first time to Cambridge, can you recommend a good, expensive restaurant in the centre? Sentence14: That sounds good. I also need to book a taxi to go from the Vue to the restaurant by my booked time. Sentence15: There are 11 found. how about the broughton house gallery? Sentence16: No I would prefer a museum. Sentence17: Do you want British food? If so, the Cambridge Chop House is popular. You are in luck as there is a wide range of options. Sentence18: OK. How about an expensive Japanese restaurant? I'd like to treat myself! Question: Who has spoken the sentence 7? (A) User (B) System

SOLUTION:
Answer: (B) System