Q: You are shown a conversation between a user and system. Identify who has spoken the indicated sentence based on the conversation.
Sentence1: There are a few different options. Would you prefer a hotel or a guesthouse? Sentence2: It'll be 7 people and 3 nights beginning tuesday. Please remember to give me the reference number. Sentence3: There is one option: the cambridge belfry. Shall I book it for you? Sentence4: Thank you for contacting us and have a good time! Sentence5: I would like a four star hotel please. Sentence6: I would like to go to a park in the south. Sentence7: The cambridge belfry just became available. Booking was successful. Reference number is : 7SKSRY3S . Will this work for you? Sentence8: Yes, thank you! That will work. Sentence9: I'm also looking for a place to stay that includes free parking and is in the cheap price range. Can you find something? Sentence10: We have two park available sheep's green and llammas land park fen causeway, and wandlebury country park, both have free admission. Sentence11: Is there any hotel available for you to book? Sentence12: Yes, book please and I need a reference number Sentence13: Unfortunately it is not allowing me to book hotels right now. Is there anything else I can do for you? Sentence14: Could you get me the phone number to the Wandlebury country park? Sentence15: No that will be all thanks so much for all of the help. Sentence16: Is there anything else I can help you along with? Sentence17: Before I can book, I need to know the length of your stay, what day you'll arrive, and for how many people Sentence18: Sure thing, 01223243830. Was there anything else I could assist with? Question: Who has spoken the sentence 2? (A) User (B) System
A:
Answer: (A) User