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

Ex Input:
Sentence1: Id is TR0625, travel time is 79 minutes and you will arrive by 22:55. Anything else? Sentence2: Actually, could you help find a train as well? To Norwich? Sentence3: I found a train from cambridge to norwich at 05:36 on Friday, will that work? Sentence4: Sunday would be good. Sentence5: No, you've answered all of my questions. Thanks so much for your time. Bye. Sentence6: The Acorn Guesthouse is a 4 star hotel located in the north side of town. It includes free internet and parking. Would you like me to book it for you? Sentence7: I need to leave after 21:30, is there anything closer to that time? Sentence8: Thank you, and thanks again for using our free service. Sentence9: I am trying to find the Acorn Guest House. Sentence10: No, just leave after 21:30. Will you give me the travel time, arrival time and the Train ID? Sentence11: No, thanks. I will go ahead and book it myself. I think I have all the information I need. Thank you. Sentence12: Is there a time you need to arrive by? Sentence13: Yes there are 14 trains. Which day would you like to depart? Sentence14: Thank you for using our service, have a nice day. Question: Who has spoken the sentence 11? (A) User (B) System

Ex Output:
Answer: (B) System


Ex Input:
Sentence1: Sure! The phone number is 01223452587, the postcode is cb58bs, and that is in the centre area. Sentence2: That sounds great to me. Can I get the phone number, postcode, and area please? Sentence3: You are booked into Prezzo which is moderately priced on the west side. Your reference number is G2FIPHUL . Is there anything else? Sentence4: Great! I think you've covered it all. I don't need anything else. Thank you! Sentence5: Is there one that serves Italian food? Sentence6: You're quite welcome. Just let us know if you need any further assistance. Have a great day! Sentence7: There are none in the area that serves Welsh food, would you like to look for another type of cuisine? Sentence8: I'd like a moderate price range, please. Sentence9: I have found 5 attractions. They are all in the centre. Would you like to visit all saints church? Sentence10: There are 15 italian restaurants. Do you have preference in food price or area? Sentence11: I'm looking for a place to dine that serves welsh food. Sentence12: I am also looking for a place to go, anything with architecture. Sentence13: I don't have an area preference, but I would like to book a table for 6 people at 16:45 on wednesday. Sentence14: I have 5 moderately priced Italian restaurants. Do you have a preference on area, they are spread around the east, west, south, and centre. Question: Who has spoken the sentence 3? (A) User (B) System

Ex Output:
Answer: (B) System


Ex Input:
Sentence1: I need a train out of cambridge on Sunday, please. Sentence2: Yes there are 4 options to choose from, do you have a specific part of town you'd prefer? Sentence3: We have trains leaving every hour starting at 05:00 that day. What is your destination? Sentence4: I have train TR3544 departing at 19:50 and arriving by 20:07. Would that work for you? Sentence5: ok, perfect, have a great day Sentence6: No that will be all. Sentence7: I'd also like to see some things in town, in particular any sort of boating. Is there anything like that? Sentence8: The Riverboat Georgina doesn't seem to have an entrance fee. Their postcode is cb41as, phone number 07807718591, and address 251a Chesterton Road. Do you need help with anything else? Sentence9: I found no records of an attraction involving boats near Ely. Would you like me to search for something else, or for boats in a different area? Sentence10: I need to go to ely , near a place that has a boat.What is the entrabnce fee ? Sentence11: Yes, what is the price of that train? Sentence12: Yes, please. Also, what is the entrance fee? Sentence13: The price is 3.52 pounds, would you like me to book a ticket for you? Sentence14: Riverboat Georgina is an excellent boat attraction in the north. Would you like the postcode and phone number? Sentence15: Actually, the part of town doesn't matter. I'd just like to take a boat ride or look at some boats, please. Sentence16: The train should go to ely and should leave after 19:15. Question: Who has spoken the sentence 4? (A) User (B) System

Ex Output:

Answer: (A) User