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
Example solution: Answer: (A) User
Example explanation: The sentence 1 is said by a user because the intent of it says that the information has to be gathered from the system

Problem: Sentence1: Bye, take care Sentence2: There are 4 places to stay in the Centre area two are guesthouses and two are hotels. Do you have a type preference or price range? Sentence3: They both have free wifi and parking. Would you like me to book one for you? Sentence4: No problem, are there any college places? Sentence5: christ's college is in the centre, as are many other college's in fact. Sentence6: I am looking for a moderately priced hotel, that has a 4 star rating. Sentence7: Emmanuel college is free to visit and the postal code is cb23ap. Sentence8: You're welcome, let me know if I can help again. Sentence9: Please pick one, and tell me the entrance fee and post code. Sentence10: Hello, I'm looking for an attraction that is in the type of multiple sports and is located in the centre. Sentence11: I'm afraid we don't have any like that in the center. There's a cheap 4-star guesthouse and an expensive 4-star hotel. Would either of those work for you? Sentence12: You are quite welcome. Will you need a taxi to the hotel? Sentence13: I'm sorry. There is no multiple sports attraction in the center of town. Sentence14: Book it! Need 3 people for 5 nights starting Friday. Thank you. Sentence15: Awesome! Thanks for your help! Sentence16: Goodbye! Have a great stay in Cambridge! Sentence17: I also need a moderate place to stay, with free parking. Sentence18: Booking completed! Look for a black toyota at 22:45. Contact number : 07067597569 Sentence19: Thanks for your help. That's all I need. Sentence20: I booked 3 nights for 5 people at university arms hotel beginning friday . They are located at regent street and the phone number is 01223351241. Sentence21: Does it have free wifi at least? Sentence22: Yes please. I want to leave the attraction no later than 22:45. Question: Who has spoken the sentence 11? (A) User (B) System
Solution: Answer: (B) System