Given the task definition and input, reply with output. You are shown a conversation between a user and system. Identify who has spoken the indicated sentence based on the conversation.

Sentence1: There are plenty of attractions in the West. What type of attraction do you fancy? Sentence2: I need a taxi to commute from the hotel to the college, leaving the hotel at 22:15. Sentence3: A hotel would be good, please. Sentence4: Not a problem. I see several that fit that description, so let's narrow it down a bit more. Would you like to stay in a guesthouse or hotel? Sentence5: Did you have a particular area of town in mind? Sentence6: Where would you like to depart from Sentence7: Great I also am looking for some place to go for an attraction in the west part of town. Sentence8: Churchill college is a great free attraction. The postcode is cb30ds. Would you also like the phone number? Sentence9: Yes, please! For 3 people for 4 nights starting Thursday. Sentence10: The booking was successful. Your reference number is: 529EH27L . Can I do anything else for you today? Sentence11: Yes, I need to book a taxi. Sentence12: I have the Cambridge Belfry which is cheap, located in the west, is a hotel with free internet and parking. Would you like me to make you a reservation? Sentence13: The phone number for churchill college is 01223336233. What time do you need a taxi? Sentence14: No but I would like free parking and a star of 4 please. Sentence15: Hello, I'm looking for a cheap place to stay that includes wifi in cambridge. Sentence16: Surprise me! I'm always up for an adventure. I will need the address and entrance fee. Question: Who has spoken the sentence 14? (A) User (B) System
Answer: (A) User