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

Ex Input:
Sentence1: It's a hotel. There are 5 guesthouses in the area. Do you prefer cheap or moderate for the price range? Sentence2: I want to go from cambridge to ely, no preference for time but I need to book for 8 people. Sentence3: Great. Can you help me with a train as well? I'm looking to come in from Ely. Sentence4: What is your destination? And do you have any preference for day, departure or arrival time? Sentence5: There are 5 guesthouses that have free parking. Should I book one of them for you? Sentence6: There are trains that run every two hours every day starting at 5:50. Do you know what day you'd like to travel? Sentence7: Okay, none of them DON'T offer free wifi? If not, I'll need the address for one that does have wifi, please. Tell me about your favorite. Sentence8: no, but it should have free parking, please. Sentence9: Thank you and enjoy your visit. Have a great day. Sentence10: The price doesn't really matter. I just need free parking. It doesn't really need to have internet though. Sentence11: The allenbell is a guesthouse on the east. The addres sis 517a coldham lane post code cb13js. Sentence12: There are no hotels that do not have internet, but 7 which do have it. Do you have a specific price range you'd prefer? Sentence13: Is that a guesthouse or a hotel? I'd really prefer a guesthouse. Sentence14: Hi. I'm looking for a hotel in the east. The internet is not needed. Sentence15: The Express by Holiday Inn Cambridge is in the area and has free parking, would you like more information? Sentence16: No, I don't need anything else right now. Thank you for your assistance. Good Bye. Sentence17: I'm looking for Wednesday , arrive by 11:30 for 8 people Please. Sentence18: Booking was successful, the total fee is 35.2 GBP payable at the station. You reference number is 7ZCVR4Q3 . Can I help you with anything else? Question: Who has spoken the sentence 15? (A) User (B) System

Ex Output:
Answer: (B) System


Ex Input:
Sentence1: The TR3370 will take you to norwich. Do you need a ticket? Sentence2: Well I have many things to do such as architecture visits or museums or theaters. Anything sound intriguing to you? Sentence3: There are 13 to choose from. Might I suggest the Pembroke College. They have free entrance and are located on Trumpington Street. Sentence4: The number is 01223338100. Sentence5: cool, thanks dude Sentence6: The post code is cb21rf. Can I help with anything else today? Sentence7: I need a train to norwich on Sunday. Sentence8: Yes I would like to go to a college. Sentence9: Thank you! That will be all for today! Sentence10: Do you want tickets? Sentence11: yes if it leave after 19:30. thanks Sentence12: No, I don't need to book now. On the other hand, I'm looking for something to do in the centre of city. Sentence13: I am sorry that os not leaving at the correct time but I have train TR9083 leaving at 19:55. Sentence14: Can I have the postcode? Sentence15: You're welcome. Please reach out to us again, if we can be of further assistance. Good-bye. Sentence16: Yes, can I also get the phone number for Pembroke College? Question: Who has spoken the sentence 13? (A) User (B) System

Ex Output:
Answer: (B) System


Ex Input:
Sentence1: Sure thing! Enjoy your trip and your dinner. Be sure to contact us for anything else you may need. Sentence2: I can help find a train. I need to know where you are traveling from and to and what day and time you wish to travel. Sentence3: No thank you. I'll just need the travel time and train ID, please? Sentence4: I need a moderately priced restaurant in the centre. Sentence5: Okay, I recommend Bloomsbury restaurant. Would you like me to book a table? Sentence6: The ID is TR2704 and the total travel time is 17 minutes. Anything else? Sentence7: No. That will be all for now. Thank you for your help. Sentence8: I would like sometthing International. Sentence9: Can you help me find a train? Sentence10: I was able to reserve you a table, they will only hold the table for 15 minutes. Your reference number is KNRFFO4K . Do you need anymore assistance today? Sentence11: Yes there will be 8 of us at 17:15 on Wednesday. Sentence12: Train TR2704 would suit your needs. Can I book you a ticket? Sentence13: I would like a train from Ely to Cambridge on Wednesday and I need to arrive before 10:45. Sentence14: Certainly! What type of cuisine would you like? Question: Who has spoken the sentence 10? (A) User (B) System

Ex Output:

Answer: (A) User