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: Certainly I can help with that, will you destination be from allenbell? Sentence2: I have booked a taxi for you. A grey toyota with the contact number 07790143125. Is there anything else you need? Sentence3: Thank you, please enjoy your stay here in Cambridge. And have a wonderful day. Sentence4: Well, I also need to book a taxi. I want to leave the hotel by 19:30. Sentence5: I'm also looking for a museum in the east area. Can you help me find one? Sentence6: Yes! Can I have the postcode for it? Sentence7: It is a 4 star hotel that is cheap, and in the east of town. It is a guesthouse type and phone number is 01223210353. Sentence8: Can you give me some information on the Allenbell? It's a hotel. Sentence9: No. Thank you very much. Sentence10: I need it for 5 people and 5 nights starting from sunday. I will also need the reference number. Sentence11: Yes, the Cambridge Artworks is a wonderful museum in the east. Would you like more information? Sentence12: I want to go to the Cambridge Artworks. Sentence13: I have successfully booked it for you. Your reference number is I44610JK . Sentence14: Sure, the postcode for cambridge artworks is cb13ef. Do you need any more information? Question: Who has spoken the sentence 1? (A) User (B) System
Solution:
Answer: (B) System