Given the task definition and input, reply with output. You are shown a conversation between a user and system. Identify who has spoken the indicated sentence based on the conversation.

Sentence1: Sure, Gonville Hotel is a 3 star rating hotel located at Gonville Place. It offers free parking and free wifi. Would you like me to reserve a room? Sentence2: sure, where are you departing from? Sentence3: Unfortunately, I don't happen to have any places that are expensive in the north. Can I look for something else for you? Sentence4: TR1828 is leaving at 17:32, would you like to do that? Sentence5: Yes please. I need reservations for two people. Sentence6: Done! Your reference number is V43NQGH7 . Can I help you with anything else? Sentence7: Booking was successful, the total fee is 35.79 GBP payable at the station. Reference number is : 8BR3OQ5V . What else can I assist you with today? Sentence8: I'm sorry, but the north does not have anything to meet your needs. There are, however, 2 options that meet your needs in the centre. One 3 and one 4 star. Sentence9: Could you please double check to make sure? if that's really the case then try the center Sentence10: Yes, for 4 nights from Thursday, and 2 people. Sentence11: Departing from Broxbourne and leaving after 17:00. Sentence12: Thanks. I am also looking for an expensive place to stay in the north part of town. Sentence13: Can you help me find a train leaving on thursday going to cambridge? Sentence14: Can I get more info on the 3 star one? Question: Who has spoken the sentence 11? (A) User (B) System
Answer: (B) System