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

Sentence1: I'm sorry, but we just reserved your table. There is no car type. But since you ask, did you need a taxi? Sentence2: Thanks, that's all I need today. Goodbye! Sentence3: Could i please get the phone number and address? Sentence4: good day and thanks for using our services Sentence5: I only have one restaurant in the north for European food, but they have amazing food. It's called City Stop Restaurant. They are expensive but so worth it! Sentence6: book a table for 2 people at 13:15 on tuesday. Sentence7: I would like the north please. Sentence8: I am thinking I would like to try some european food while I am in town. Sentence9: Yes I need a taxi that will take me between the two places and need to arrive by 13:15. Sentence10: Okay. I have a taxi booked. It will be a yellow bmw and the contact number is 07135918917 Sentence11: The Botanical Gardens at Cambridge University are a favorite destination. The entrance fee is only 4 pounds. Sentence12: What is the car type, please thank you Sentence13: There are several to choose from, in which part of town would you like to concentrate? Sentence14: Sure, the phone number is 01223336265. The address is bateman street. Can I do anything else for you? Sentence15: Yes, I would like the information on parks that are located in the centre please. Sentence16: Your booking was successful! The table will be reserved for 15 minutes. Reference number is : ZLRYLH3O . Question: Who has spoken the sentence 13? (A) User (B) System
Answer: (B) System

Sentence1: book a table for 6 people at 11:15 on tuesday at the Hakka Sentence2: Sure what type of food are you wanting to eat? Sentence3: Do they have free wifi? Sentence4: I booked the taxi, it is a yellow tesla the contact number is 07809860598. Is there anything else I can assist with today? Sentence5: I will need a taxi to get to the restaurant. Sentence6: Booking was successful, and your reference number is TDVD6XSM . Is there anything else I can assist you with? Sentence7: That is all, thank you for your help. Sentence8: The Hamilton Lodge sounds perfect for you. Would you like to know more? Sentence9: I'm glad we were able to help. Sentence10: I would like to find an expensive restaurant in the north part of Cambridge. Sentence11: Yes, they do have internet. Shall I make a booking? Sentence12: There 2 of them - the Hakka and the hotpot. Which one would you like to try? Sentence13: Yes please. I want 4 nights from tuesday, and for 6 people. Give me the reference number too. Sentence14: I am looking for a hotel in the same area that has free parking. Sentence15: Booking was successful. The table will be reserved for 15 minutes. Reference number is : 48WF5G7X . Can I help with anything else? Sentence16: How about chinese food? Question: Who has spoken the sentence 15? (A) User (B) System
Answer: (B) System

Sentence1: I'm glad I could help you today. Good bye. Sentence2: nope, leave me alone now please Sentence3: I would be happy to get you that information. It's a guest house located in the west area of town. What else would you like to know? Sentence4: Where will you be traveling from? Sentence5: Okay! What would you like to know? Sentence6: Okay, well have a great day. Sentence7: Booking was successful. Your reference number is PEA9MNU6 . Will that be all for today? Sentence8: Thank you! Bye! Sentence9: Do you need a taxi to or from anywhere? Sentence10: Okay, you're all set. I've booked your trip on train TR2061. The total cost is 80.8 GBP, payable at the station, and the reference number is HI5QN7N7 . Sentence11: I think I am ready to book. Can you get me a booking for 8 people for 4 nights, starting from Sunday? Sentence12: Thank you so much! You're very helpful and I appreciate all your work. I'm looking forward to this trip! Sentence13: I want to leave Bishops Stortford and arrive in Cambridge by 12:00, please. Sentence14: TR2061 arrives by 06:07. Will that do? Sentence15: My best friend told me about a great place they stayed at. It was called Finches Bed and Breakfast. Can you tell me a little about that place? Sentence16: Actually, I need some information on a train heading into Cambridge. Sentence17: Yes please book that for 8 people and provide me with the reference number. Sentence18: I am looking for information in Cambridge Question: Who has spoken the sentence 6? (A) User (B) System

Answer: (A) User