Q: You are shown a conversation between a user and system. Identify who has spoken the indicated sentence based on the conversation.
Sentence1: Yes I would like it to be in the moderate price range. Sentence2: The total travel time is 79 minutes, just to double check, can I assist with anything else? Sentence3: Please get me the reference number too. Sentence4: I do need a hotel room booked. Sentence5: Okay, how many days will you be staying? Sentence6: I only am showing 1 it is cityroomz, when were you planning your stay so I can book the room for you? Sentence7: TR7047 leaves cambridge at 16:36 and arrives in norwich at 17:55. Will that work? Sentence8: There are 3 hotels in the centre of town with free wifi. Do you have a price range? Sentence9: I am leaving cambridge going to norwich on friday anytime after 16:15 will work for me Sentence10: There are lots of trains running on Friday. Do you have specific departure and destination points in mind? Sentence11: How many people will be staying at the hotel? Sentence12: I'm also looking for a hotel to stay at in the centre. Internet is not important. Can you help me with that? Sentence13: Can I book the train for you or help you with something else? Sentence14: Thank you - that is exactly what I need Sentence15: Are there any trains running this Friday? Sentence16: I'lll be staying 3 nights starting on Tuesday. Sentence17: You are now booked at Cityroomz! Your reference number is D8MU26MH . Can I help you with anything else? Sentence18: That is all for the hotel room. could you help me with one last thing? I need the travel time for train TR7047 Sentence19: I will book that for you now. Sentence20: You're welcome, have a good day. Sentence21: that's all thanks! Sentence22: There will be seven of us. Question: Who has spoken the sentence 12? (A) User (B) System
A:
Answer: (A) User