You are shown a conversation between a user and system. Identify who has spoken the indicated sentence based on the conversation.

Let me give you an 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
The answer to this example can be: Answer: (A) User
Here is why: The sentence 1 is said by a user because the intent of it says that the information has to be gathered from the system

OK. solve this:
Sentence1: Can you help me find somewhere to stay in the south? I want it to be moderately priced please. Sentence2: there are 2. one with 4 star another with 3. which one do you prefer? Sentence3: First, may I have the address for the rajmahal restaurant? Then, I want to get from the hotel to the restaurant, please. Sentence4: Either is fine but I would need to have wifi included, this is a business trip. Sentence5: How about the 4 stars one. Sentence6: Rajmahal is located at 7 Barnwell Road, Fen Ditton in the east side. I've also booked your taxi, departing by 21:00. You'll be taking a yellow VW, the number is 07875116115. Sentence7: I have many to choose from. Can you specify the area? Sentence8: thank you that will be all Sentence9: Yes, please. I would also like a taxi to leave the hotel by 21:00. Sentence10: I would like it in the south. Sentence11: Alright, and what is your destination? Sentence12: I have 2 that offer free wifi. One is rated 3 stars, the other is 4. Do you have a preference? Sentence13: Not right now. I'm also looking for a restaurant in the same price range that serves Indian food. Can you help me with that? Sentence14: It looks like there aren't any in the south. Would you like to try a different area? Sentence15: rajmahal is in the west and moderately priced, shall I book you? Sentence16: I'm glad I could assist you today. Have a good rest of the day. Sentence17: No, how about indian food? Sentence18: That would be the Aylesbray Lodge Guest House. Would you like to make a booking? Question: Who has spoken the sentence 17? (A) User (B) System
Answer:
Answer: (B) System