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: i can certainly help with that. Where are you departing from? Sentence2: I am departing from cambridge and need to arrive by 12:00. Sentence3: Is there a time you want to leave by? Sentence4: We have over 400 trains that meet that criteria, what destination did you want to go to? Sentence5: You're welcome, and have a great day. Sentence6: Booking was successful, the total fee is 151.19 GBP payable at the station. Reference number is : A6Z2U9VN . Is there anything else I can help you with? Sentence7: No thanks, but I'd like some information on a train next. Sentence8: I have the TR7505 that will arrive by 11:06. Would you like me to book that for you? Sentence9: No, that should be all. Thank you! Sentence10: A hotel on the east side with free internet and parking if thats doable. Sentence11: I need a place to stay that includes parking Sentence12: I need the postcode too. Sentence13: The postcode for that is cb13lh. Do you want me to book a room now? Sentence14: Would you have a preference for an area or price? Sentence15: Yes! Please book for me and three friends. I need the reference number as well. Sentence16: I would like to arrive by 12:00, which ever one is closest to that. Sentence17: I have one hotel on the east that offers both free wifi and parking. It is the Express by Holiday Inn Cambridge. It is expensive and has a 2-star rating. Sentence18: This will be on a Friday and I'm going to Leicester. Question: Who has spoken the sentence 6? (A) User (B) System
A:
Answer: (A) User