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: The price per ticket on TR8932 is 9.8 GBP. Will that be all? Sentence2: Does it have free parking and internet? Also, I'd like to be in the centre of town. Sentence3: I don't care but it needs to be cheap. Sentence4: Wonderful, could I just have the price for now? I may book myself later. Sentence5: Okay, the allenbell is a cheap guesthouse, would you like me to make a booking? Sentence6: I have the Alexander Bed and Breakfast guesthouse available in the centre. It's cheap, 4 stars, with free wifi and parking. It's in postcode cb12de. Would that work for you? Sentence7: Hi, I'm looking for a guesthouse in Cambridge. Sentence8: We have 11 trains matching your request. Was there a specific time you wanted to depart? Sentence9: What is your departure and destination locations? Sentence10: Yes thank you. I also needs a train on tuesday that arrives by 16:15. Sentence11: I would like to depart from kings lynn and go to cambridge. Sentence12: I have found 24 guesthouses in cambridge. Is there a particular area you are wanting to stay in? Sentence13: Yes, thank you so much! Goodbye! Sentence14: TR8932 will arrive at 15:58 would that work for you? Sentence15: Yes it does and it in the east though, is that going to be problem? Sentence16: Yes, I need one that is in the centre. Please give me the postcode, price range and star of the hotel. Sentence17: Whichever one gets me to Cambridge closest to 16:15. Sentence18: Thank you for using our system! Question: Who has spoken the sentence 6? (A) User (B) System
A:
Answer: (A) User