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: I can most definitely help with that. Is there a certain type of food you would like to try? Sentence2: Yes. Please send be the phone number, address and postcode. Sentence3: Yes, can you book that train for 2 people please? Sentence4: Their number is 01223311053, postcard is cb21uf and they are located on Bridge Street City Centre. Sentence5: I have over 800 possible matches for that request. Where will you be departing from? Sentence6: I am leaving from Kings Lynn on Saturday. Sentence7: Cote is a French restaurant in the centre of town. It is expensive. Would you like me to book you a reservation? Sentence8: Your train has been booked. Reference number CYW95CE2 . Is there anything else I can help you with? Sentence9: Great, thanks. I also need a train. I need to leave cambridge after 12:15. Sentence10: I'm looking for an expensive restaurant in the city centre. Sentence11: I am happy to be able to help. Have a nice day. Goodbye. Sentence12: Yes, I think I would like to try French food. Sentence13: No, thank you. That is all I need today. Sentence14: I have a train TR4003 leaving cambride at 13:00 and arriving at london kings cross at 13:51. Would you like me to make reservations? Question: Who has spoken the sentence 6? (A) User (B) System
Answer: (A) User