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. Can I make a reservation for you? Sentence2: Thank you, one last thing we need a place to dine at in same area as multiple sports that would be in moderate price range. Sentence3: I have three options. Two Indian places and one Italian. Curry or pasta? Sentence4: Thank you as well. I hope you enjoy your visit and have a wonderful day. Sentence5: Pizza hut fen ditton is a great italian restaurant in the area. Would you like a reservation? Sentence6: I would like curry prince. It sounds interesting. Sentence7: Sounds good. Enjoy your visit, and thanks for using Cambridge TownInfo centre! Sentence8: I do have one. It is the Cherry Hinton Village Centre in the east. It is located on Colville Road, Cherry Hinton. Would you like any other info for them? Sentence9: I wanted traditional food. If that's not available I'll try Italian. Sentence10: Sure! The post code is cb58jj and the phone number is 01223566388. Sentence11: No reservation thanks, my plans are still in the works. Could I have the postcode and address though? Sentence12: I'm sorry, I said Italian but I really wanted indian food. Sentence13: Thank you, that's everything I need for now. Sentence14: There are 2 option to choose from: curry prince and rajmahal. Which would you like to try? Sentence15: I am looking for attractions of multiple sports located in the east. What is available? Sentence16: No, that sounds like just what I need. Thanks for your help and have a great day. Bye. Question: Who has spoken the sentence 13? (A) User (B) System
Answer: (B) System