You are shown a conversation between a user and system. Identify who has spoken the indicated sentence based on the conversation.

Sentence1: Great, thank you. Now, I need some information on college I can visit in the centre of town. Sentence2: I need to go from Cambridge to Peterbourgh Saturday. Sentence3: TR4005 departs Peterborough at 18:19 and arrives in Cambridge at 19:09. Total travel time is 50 minutes, and the fare is 13.20 GBP per person. Sentence4: No thank you. Thank you for your help. Sentence5: Sorry about that,what time would you like to depart? Sentence6: You're welcome. I hope you enjoy your visit! Goodbye. Sentence7: I have located several colleges in the area that have entrance fees ranging from free to 2 pounds. Is there a particular one you would like to visit? Sentence8: Can I get the address of Corpus Christi? Sentence9: I would like to leave after 18:15. Also, I would like to know the fare. Sentence10: I'm sorry. The train needs to going to Cambridge from Peterborough. Sentence11: Sure I have Corpus Christi in the city centre and Christ's College, which is very famous in the centre. Sentence12: The address is king's parade, is there anything else I can do? Sentence13: Tr7310 is leaving from cambridge at 05:06 and arriving at peterborough at 05:56 for 13.20 Sentence14: I don't have one in particular. Can you give me a few examples? Question: Who has spoken the sentence 1? (A) User (B) System
Answer: (B) System