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: I'm sorry, apparently none of our guesthouses can accommodate 7 people for 2 nights on Wednesday. Would you like to try a different day or stay period? Sentence2: Actually, let's find some lodging accommodations first. I'd like something moderately priced with a 4-star rating. Oh, and I'll have my laptop with me so I'd like wifi to be included. Sentence3: You're welcome. Enjoy! Sentence4: We're fortunate, Cambridge has many attractions. What did you have in mind? Sentence5: I would like to visit a park. Can you tell me about any parks in the city? Sentence6: There are several attractions in Cambridge. What type of attractions are you interested in? Sentence7: There are 11 guest houses available. Is there is certain area of the city you prefer? Sentence8: Hmm. I suppose we could leave a little sooner. Are there any that can accommodate us for one night? Sentence9: I was able to book you A and B guesthouse for 1 night, reference number is EQG0KVRJ Sentence10: Any area is fine, can you book one for 7 people for 2 nights starting on wednesday? Sentence11: I am traveling to Cambridge and excited about seeing local tourist attractions, any suggestions for me? Sentence12: Thank you, that's all I need for now. Sentence13: Great! Thank you! I'm also looking for places to go in town. Sentence14: Wandlebury Country Park is in the south of town, would you like to know more? Question: Who has spoken the sentence 1? (A) User (B) System
Solution:
Answer: (B) System