You are shown a conversation between a user and system. Identify who has spoken the indicated sentence based on the conversation.

Let me give you an 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
The answer to this example can be: Answer: (A) User
Here is 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

OK. solve this:
Sentence1: I would like something in the north and has free wifi and free parking if possible. Sentence2: Can you book the Acorn Guesthouse for Thursday? Sentence3: Actually that is all. Have a lovely day. Sentence4: Thanks. Bye now. Sentence5: You've been booked and your reference number is V69YHH10 . Sentence6: I have the Acorn Guesthouse, Arbury Lodge Guesthouse, and Archway House in that area all with free wifi and parking. Can I book one of these for you? Sentence7: How many stars would you like? Sentence8: Excellent! Thank you! Sentence9: Four stars please. Sentence10: Is there anything else I can help you with? Sentence11: Great, I need it for 5 people for 3 nights, and let me know the reference number. Sentence12: I'll be happy to. How many people in your party? And how many nights will you be staying? Sentence13: Thank you. Have a great day. Sentence14: Hi, I am looking for a r star place to stay that has free wifi. Sentence15: I have 21 that have 4 stars, 18 are guest houses and 3 are hotels. Do you have a preference to area or type of place? Sentence16: Here is the address and telephone number of the hotel, so can arrive without any problem. Question: Who has spoken the sentence 11? (A) User (B) System
Answer:
Answer: (B) System