You are shown a conversation between a user and system. Identify who has spoken the indicated sentence based on the conversation.
One 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
Solution is here: Answer: (A) User
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

Now, solve this: Sentence1: The acorn guest house is in a moderate price range and the address is 154 chesterton road. Sentence2: You're welcome, can I help you with anything else? Sentence3: No, but I do prefer a guesthouse. Sentence4: Pick one for me. I want to book it for myself on friday at 16:15. Sentence5: Perfect, that is all that I need. Thank you so much for your help! Sentence6: There is the Curry Prince and Rajmahal which meet your criteria. Sentence7: Can you tell me which one is your favorite, and let me know the price range and address for that one? Sentence8: Just let us if you need additional assistance in the future. Goodbye. Sentence9: There are 4 restaurants that match your description. Any opinion on price? Sentence10: I booked Curry Prince for you for Friday at 16:15, table for one, reference number G6570XEX . The table will be reserved for 15 minutes. Sentence11: I am also looking for a restaurant that serves indian food in the east area. Sentence12: What about price range? Sentence13: I would like something moderately priced please. Sentence14: I have tons of options available. Is there a particular area you would like? Sentence15: No, thank you! Sentence16: I'm looking for a place to stay in cambridge, free parking and wifi should be included Question: Who has spoken the sentence 1? (A) User (B) System
Solution:
Answer: (B) System