You will be given a definition of a task first, then an example. Follow the example to solve a new instance of the task.
You are shown a conversation between a user and system. Identify who has spoken the indicated sentence based on the conversation.

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: Answer: (A) User
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

New input: Sentence1: Well, there are 12 guesthouses and 2 hotels in town that fit your criteria, they all offer free WiFi. Do you have a price range in mind or a star rating? Sentence2: Most definitely. Would you like to go ahead and book a reservation? Sentence3: Do you have a preference of type of lodging, star rating, or internet? Sentence4: I'd recommend a nightclub if you don't mind paying or a museum if you're looking to do something free. Sentence5: We have 44 places to visit in the centre, any specific preferences in mind? Sentence6: I'm sorry, the Acorn Guest House is a guesthouse. Is that acceptable or did you want a hotel specifically? I apologize for the confusion. Sentence7: It's located at 154 chesterton road, the postcode is cb41da, and you can reach them by phone at 01223353888. Sentence8: I'm looking for places to go in the centre area of town. Sentence9: Yes, I would. Can I get the address, area, and phone number? Sentence10: I don't care about any particular area to be honest. Sentence11: How about the acorn guest house? Sentence12: My favorite is the Cambridge Contemporary Art Museum and their phone number is 01223324222 and the post code is cb21su. Admission is free. When would you like a hotel? Sentence13: I would just like to know what is available. Oh I also need free wifi. Sentence14: As long as it has everything I've been asking for, I'm good. Sentence15: Thank you. That was all I needed. Goodbye. Sentence16: I'll repeat this: The hotel should be in the moderate price range and it should include free wifi and free parking. I don't care about the area. Sentence17: A museum sounds good. Do you have the poscode and phone number? I also need a place to stay that is moderately priced with free parking. Sentence18: I found 14 for you. Do you have a specific area you'd like? Sentence19: What would you recommend? Sentence20: I would like a hotel in the moderate price range and it should include free parking. Question: Who has spoken the sentence 16? (A) User (B) System
Solution:
Answer: (A) User