Detailed Instructions: You are shown a conversation between a user and system. Identify who has spoken the indicated sentence based on the conversation.
Q: Sentence1: How about for 5 nights? Sentence2: yes.book for six people and six nights. remember to also give me the reference number Sentence3: You're welcome. Have a pleasant stay. Goodbye. Sentence4: I am looking for a place to stay. The hotel should have a star of 0 and should be in the type of hotel Sentence5: Sorry, I was unable to complete the booking. Would you like to try booking for a shorter stay or for another day? Sentence6: it needs to start on wednesday, please. Sentence7: your booking was successful. is there anything else i can help you with? Sentence8: I found the cityroomz hotel in the centre part of town. Would you like to book a room? Sentence9: Actually I need the reservation to be for 4 nights, 6 people, starting from wednesday. Could you change the reservation for me please? Sentence10: I think that is everything, thanks! Sentence11: No problem, I was able to book that for you and your reference number is VA5JADCK . Is there anything else I can do for you? Sentence12: Cityroomz has free wifi and does not offer free parking. Do you want me to book it for you? Sentence13: What day would you like the reservation to start? Sentence14: The hotel should include free wifi and doesn't need to have free parking. Question: Who has spoken the sentence 6? (A) User (B) System
A:
Answer: (A) User