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

Example input: 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 output: 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
Q: Sentence1: The Alpha Milton Guest House is of moderate price and located in the north cambridge area. Sentence2: The Hamilton Lodge happens to be moderately priced and offers free wifi and parking, would you like me to book this hotel for you? Sentence3: I want a hotel that's in the moderate price range. Sentence4: The phone number is 01223350688. Is there anything else that I can do for you? Sentence5: Your booking was successful and your reference number is BOBT5BLT . Is there anything else I can help you with? Sentence6: I can book you at the Hamilton lodge if you would like. Sentence7: I would like it also to be in the north and moderately priced. Sentence8: Yes, please book this. Sentence9: Can you help me find a 3-star hotel in the north of Cambridge? Sentence10: Great can you book it for 2 people for 4 nights starting thursday? Sentence11: I don't need it booked. I just require the phone number. Thank you. Sentence12: That is everything I needed for today. Thanks! Sentence13: You're welcome! You have a great day! Sentence14: There are 17 Chinese restaurants. Is there a particular price range or area you'd like? Sentence15: What date, time, and party size would you like to book? Sentence16: As long as it is a hotel and not any other type, then yes book it for me. Sentence17: I can recommend Golden Wok, would you like me to book a reservation there for you? Sentence18: Yes. I also need to find a restaurant that serves chinese food. Question: Who has spoken the sentence 7? (A) User (B) System
A:
Answer: (B) System