You are shown a conversation between a user and system. Identify who has spoken the indicated sentence based on the conversation.
Example: Sentence1:i need a place to dine in the center thats expensive Sentence2: I have several options for you; do you prefer African, Asian, or British food? Sentence3: Any sort of food would be fine, as long as it is a bit expensive. Could I get the phone number for your recommendation?Question: Who has spoken the sentence 2? (A) User (B) System
Example solution: Answer: (A) User
Example explanation: The sentence 1 is said by a user because the intent of it says that the information has to be gathered from the system

Problem: Sentence1: No, I don't have a preference. I'd just like it to be expensive, please? Sentence2: i will go with the first. book for the same group of people and 2 nights starting from the same day Sentence3: Chiquito Restaurant Bar is very good. Would you like a table? Sentence4: Okay I am glad I could be of help. Thank you for calling. Sentence5: Yes. Shall I book it? Sentence6: Thanks have a nice day. Sentence7: Is that in the south area of town? Sentence8: I've made those reservations and your reference number are OZZGLCVB . Sentence9: Yes, could you please book me a table for 5 at 14:30 on Friday? Sentence10: i have 2 places. the huntingdon marriott hotel and the university arms hotel. which would you like? Sentence11: There are 3 places available. Do you have an area in mind? Sentence12: Hey, wait, just a second! I just remembered, I need a place to stay with 4 stars, preferably a hotel. Sentence13: Booking was successful. Reference number is : Y79YGBO7 . Anything else I can help with? Sentence14: Thanks, you too. Sentence15: Thank you. That's all I need today! Sentence16: I'm looking for a Mexican restaurant with expensive food. Question: Who has spoken the sentence 15? (A) User (B) System
Solution: Answer: (B) System