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: Yes I would like to book that for 3 nights from Saturday for 7 people. Sentence2: Can you find me a spanish restaurant in the moderate price range? Sentence3: You are all set, the reference number is Y5RM8ZUC, can i assist with anything else? Sentence4: No thank you, I just need the post code. phone number and address please. Sentence5: Acorn Guest House is located in the north area of town. Would you like more information? Sentence6: Their phone number is 01223353888. Their postcode is cb41da and their address is 154 chesterton road. Sentence7: Yes, La Tasca matches your preferences. Would you like their information? Sentence8: Ok great, have a wonderful day! Sentence9: Will you need any dinner reservations to go with that? Sentence10: I want to double check, is La Tasca in the centre of town? Sentence11: Thanks that's all I needed to know today. Sentence12: Yes, it is in the centre. Would you like a reservation? Sentence13: I'm looking for a hotel called acorn guest house Sentence14: No thanks. I just need to book the room. Question: Who has spoken the sentence 9? (A) User (B) System

Solution: Answer: (B) System