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: If there is no hotel availability, I will accept a guesthouse. Is one available? Sentence2: There are 6 nightclubs located in Cambridge. 5 in the Centre and 1 in the South; do you have a preference? Sentence3: They all also offer free parking. Would you like to book a room? Sentence4: No preference, surprise me. I'll just need the postcode. Sentence5: Yes, I'd prefer a hotel over a guesthouse and I need to stay in the north. Sentence6: Do any of the guesthouses have access to internet for their guests? Sentence7: The Soul Tree Nightclub I have heard is the best. Their postcode is cb23qf. Anything else you need? Sentence8: Okay, I am glad I could help. Have a wonderful day. Sentence9: Yes, there are 7 guesthouses in the north that meet your needs. 6 are moderate and 1 is cheap. Would you like more information? Sentence10: Okay. Thank you very much for your help. Sentence11: There are 19 hotels available with a 4 star rating and free parking. Would you like to add any additional preferences? Sentence12: How about free parking? Sentence13: Yes I need to find a hotel with free parking and 4 star rating. Sentence14: yeah all of them do, any other preference? Sentence15: I think that takes care of everything. Sentence16: The Acorn Guest House is at 154 chesterton road, and its phone number is 01223353888. There are no nightclubs in the north part of town. Sentence17: Can I help you with anything else today? Sentence18: I'm afraid no hotel in the north matches your inquiry, perhaps a different star rating? Sentence19: Could I get the phone number and address of one of them? Also can you find me a nightclub nearby and give me their postcode? Sentence20: I am going to visit and would like to go to a nightclub. Any suggestions? Question: Who has spoken the sentence 10? (A) User (B) System
Solution:
Answer: (A) User