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: I'm so sorry, there must have been an error in our system. Clare Hall is a church in the west and is free to visit. Sentence2: Thank you! I'm also looking for an African restaurant, near Clare Hall. Can you help out with that? Sentence3: That's all for now. Thank you Sentence4: Thank you and enjoy your stay in Cambridge! Sentence5: I want expensive please. Sentence6: Okay, how about one that serves Indian food? Sentence7: I was able to book a table for 8 at 11:30 Saturday at India House. Your reference number is 157YLNUA . Is there anything else I can help you with? Sentence8: I do not see any churches in our system in that area. Do you have another attraction type that you would like to see? Sentence9: We have 6 options. Do you prefer expensive or moderate pricerange? Sentence10: Anything in the west will do. What's your favorite? Sentence11: I'm sorry, we don't have an African restaurants near Clare Hall. Sentence12: Do they have anything available at 11:30? Sentence13: My sister loves India House. That sounds great. Can you book a table for 8 at 12:30 on Saturday, please? Sentence14: What type of attraction or places are of interest for you? Sentence15: Churches could be interesting Sentence16: Where can I go that is located in the west in town? Sentence17: Thanks for the correction. Can you please get me their phone number? Sentence18: I am not able to make that booking. Is there something else I can help you with? Sentence19: their phone number is 01223332360 Sentence20: I have 5 options. I'd recommend cocum or india house. Does one of those sound good? Question: Who has spoken the sentence 4? (A) User (B) System
Student:
Answer: (A) User