Teacher:You are shown a conversation between a user and system. Identify who has spoken the indicated sentence based on the conversation.
Teacher: Now, understand the problem? Solve this instance: Sentence1: Unfortunately there are no British restaurants in the South in that price range. Would you like to try a different type of food? Sentence2: Oh, no, I need a train that leaves from Birmingham new street and go to Cambridge. Sentence3: Hi, I need to catch a train after 14:15 on Thursday. Sentence4: No thanks. I have all I need now. Have a good one. Bye. Sentence5: No but can you give me the address, postcode and phone number for the Peking Restaurant please? Sentence6: Sure. Peking Restaurant, 10 Homerton Street, City Centre cb28nx, Phone: 01223354755. Is there anything else I can help you with? Sentence7: There is a train that departs cambridge and arrives at london kings cross on friday. Sentence8: How about TR8121? It leaves at 14:40. Sentence9: There are two with your preferences, The Good luck Chinese takeaway and Peking Restaraunt. Both are in the South, would you like me to book one of those? Sentence10: It arrives in Cambridge at 17:23. Sentence11: British food would be my preference. Sentence12: The cost is 75.10 pounds per ticket. The travel time is 163 minutes. As far as restaurants I have 5 available. Which type of food would you like? Sentence13: What time does it arrive? Sentence14: Have a good day. Sentence15: I'll need to know the price and travel time, and I am also looking for an expensive restaurant in the south. Sentence16: Okay, how about Chinese food. Question: Who has spoken the sentence 4? (A) User (B) System
Student:
Answer: (A) User