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

Example 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
Example Output: Answer: (A) User

Example Input: Sentence1: My destination is cambridge. Sentence2: What day will you be traveling? Sentence3: Hey. I'm looking for a train from stansted airport. Sentence4: What is your destination ? Sentence5: I plan to go on tuesday. Sentence6: How many tickets would you like? Sentence7: There are trains departing every hour. TR5077 would get in in at 8:52, does that work for you? Sentence8: That sounds perfect. Can I get the reference number from the booking? Sentence9: I would like 4 tickets. Sentence10: Booking was successful, the total fee is 40.4 GBP payable at the station. Reference number is : WWW231NO . Is there anything else you need? Sentence11: There are several. Do you have a time you need to travel specifically? Sentence12: The train should arrive by 10:00 if at all possible. Question: Who has spoken the sentence 5? (A) User (B) System
Example Output: Answer: (B) System

Example Input: Sentence1: Excellent. Can I get the entrance fee and postcode of one of them? Sentence2: The Cambridge Belfry has gotten great reviews. It's a 4-star cheap hotel in the west. Would you like to go with that? Sentence3: Does it have free parking and wifi? Sentence4: How about a college instead? Sentence5: Yes, it has free parking and internet Sentence6: Sure, 1 night and 5 people. Sentence7: No that is all thank you for all your help. Have a great day. Sentence8: I would also like to find a room in the West of town. Sentence9: It doesn't matter, whatever is available is fine. Sentence10: I have no nightclubs in that area,would you like e to look in another area? Sentence11: I will need to know how many guests are staying and for how many nights Sentence12: queens' college is found in silver street and entrance fee is 2.50 pounds. post code is cb39et Sentence13: Can you book that starting for Thursday? Sentence14: Thank you and enjoy your stay in our lovely city! Sentence15: on what price range do you want your Hotel? Sentence16: Booking was successful. Reference number is : DGQ74G0U . Is there anything else I can assist you with? Sentence17: Good Evening, I guess I am in charge of the planning the trip to Cambridge. I am looking for some places to go when we arrive. Sentence18: Why yes, there are five colleges actually. Sentence19: What area of cambridge will you be visiting? Sentence20: We will be mainly in the West part of town. Are there any nightclubs around that area? Question: Who has spoken the sentence 11? (A) User (B) System
Example Output:
Answer: (B) System