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: Can you please tell me your departure and destination locations? Sentence2: Have a great day. Goodbye. Sentence3: its address is anglia ruskin university, east road and it has a free entry Sentence4: I am planning a trip in Cambridge Sentence5: Yes, Can you please tell me the travel time? Sentence6: Thanks! I'm also looking for a train leaving on wednesday and arrive at 12:00 Sentence7: Thank you for contacting the Cambridge TownInfo centre. Goodbye. Sentence8: That is all I need today. thank you. Sentence9: what is their postcode and phone number? Sentence10: you are very welcome Sentence11: I will leaving Norwich and going to Cambridge. Sentence12: Their postcode is cb11pt and phone number is 0124549131 Sentence13: The TR1180 will leave Norwich for Cambridge Wednesday at 09:16 and arrive at 10:35. The cost of the train is 17.60 lbs. Would you like me to book it? Sentence14: No, but I do need some information on the Ruskin Gallery. Sentence15: Thank you. Will the train provide any snacks or a meal? Sentence16: Thank you so much! Sentence17: you are so welcome Sentence18: the trip is 79 minutes long Sentence19: Excellent! Do you need assistance with transportation arrangements? Sentence20: I am sorry but we are not given that information in our systems, you will have to ask when you arrive. Question: Who has spoken the sentence 15? (A) User (B) System
A:
Answer: (B) System