Given the task definition, example input & output, solve the new input case.
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
Output: Answer: (A) User
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 case for you: Sentence1: No thank you that will be all Sentence2: How about acorn guest house? Sentence3: Ok great, is there anything else I can help you with today? Sentence4: I'm sorry. I'm not finding any concert halls in the east. Would you like to try a different area or attraction type? Sentence5: What is the postcode to that place? Sentence6: You're welcome, Have a great day! Sentence7: Just pick one. Sentence8: And where would you like this guesthouse to be? Sentence9: North part of town and moderate price with wifi Sentence10: No, please get me their address and phone number. Sentence11: They are on 154 chesterton road, postal is cb41da, phone number is 01223353888, can I help with anything else? Sentence12: I was wondering whether there are any concerthalls in the east that I could check out. Sentence13: The postcode for Cambridge artworks is cb13ef. Anything else I can do for you? Sentence14: Okay! How about Cambridge Artworks? Admission is free! Sentence15: I am planning my trip and would like to find a guesthouse to stay at. Sentence16: How about a museum? Sentence17: we have museums in the east quite a few actually how can I help you? Sentence18: Do they have free parking? Sentence19: Yes they do have free parking. Do you need me to book you a room? Sentence20: Sure, I can try that. Question: Who has spoken the sentence 4? (A) User (B) System
Output:
Answer: (A) User