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

Ex Input:
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

Ex Output:
Answer: (B) System

Ex Input:
Sentence1: Was there anything you were specifically interested in? For example there are museums and nightclubs. Sentence2: Sorry, actually I need an expensive restaurant as well. Sentence3: thanks that is all i needed for today Sentence4: I am looking for something to do later in the centre of town. Sentence5: Thank you, that is all. Sentence6: Do you have a specific one in mind? Sentence7: Emmanuel Colleges number is 01223334200, and it is located on Saint Andrew's Street. Do you have any other questions? Sentence8: Okay what type of food would you like to eat and in what area please? Sentence9: There are five expensive european restaurants in Cambridge. I suggest eraina, which is also in the centre. Sentence10: I want to try european food wherever it may be. Sentence11: You're welcome! Have a great time! Sentence12: I would like to go to a college in the centre of town. Sentence13: Great. Thanks for letting us assist you today! Sentence14: No, any one will be find. Will you pick one for me and send me the address information and phone number? Question: Who has spoken the sentence 8? (A) User (B) System

Ex Output:
Answer: (A) User

Ex Input:
Sentence1: Hello, can you tell me about some colleges in town? Sentence2: Yes please. What area is that in? Sentence3: There are 18 colleges to choose from. Is there a specific area you are interested in? Sentence4: It is located in the centre. Would you like more information? Sentence5: No, I believe that's everything for now. Thank you for all of your help. Sentence6: There are many options to choose from. Can you give me the departure city and departure/arrival times? Sentence7: Pembroke college is available would you like to visit that? Sentence8: You're welcome! Have a great day! Sentence9: I'll be departing from london liverpool street, and I'd like to arrive by 18:45. Sentence10: Yes, I would like to book a train for cambridge on tuesday Sentence11: I can get you a train that arrives at 17:07. Would you like to book that? Sentence12: Your booking is all set! Your reference number is 5WATWCJJ . Is there anything else I can help you with? Sentence13: Yes for five people please. Sentence14: I'm looking for college attractions in the cambridge area Question: Who has spoken the sentence 11? (A) User (B) System

Ex Output:
Answer: (B) System