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

Ex Input:
Sentence1: Great I was able to book A and B guest house, the reference is VMWIVZV7 . Sentence2: I would like to book a table at the Italian restaurant for 8 people on Thursday at 14:45. Can I have the reference number for that as well? Sentence3: I'm looking for a place to stay in the moderate price range. It doesn't need to have free parking. Sentence4: Okay you're all set. Your reference number is U37O50HC . Is there anything else? Sentence5: Not a problem, have a great day! Sentence6: I was able to book a blue honda, phone number is 07521143616 Sentence7: It should be on the east side, and have free wifi, no food preferences though. Sentence8: I have 3 results for moderately priced guesthouses on the east side. All have 4 star ratings and free wifi, do you need parking? Sentence9: Yes, I would like to book a taxi from the hotel to the restaurant. Sentence10: Great thank you for all your help Sentence11: Thank you for your help in booking the hotel for me! Sentence12: I do not need free parking. Can you book one of them for Thursday? I have 8 people and we need to stay for 2 nights. Sentence13: I also also need a place to eat in the moderate price range in the same area as the hotel Sentence14: There are quite a number of hotels that fit your description. Any preferences in location or food served? Sentence15: You are welcome. Goodbye! Sentence16: Sure I have two Indian restaurants and one Italian restaurant pizza hut fen ditton matching your price and area preference. Do any sound good to you? Question: Who has spoken the sentence 4? (A) User (B) System

Ex Output:
Answer: (A) User


Ex Input:
Sentence1: I'm also looking for a restaurant in the centre of town that serves chinese food. Sentence2: I need to leave bishops stortford. Do you have a train going out? Sentence3: The Ugly Duckling sounds interesting! What's their address? Sentence4: I'd like to go to Cambridge and would be leaving on Thursday after 16:30. What is available then? Sentence5: Fantastic, have a great day! Sentence6: They are 10.10 pounds each Sentence7: I have 4 choice for you. The Ugly Duckling, Tang Chinese, HK Fusion, and the Sesame Restaurant and Bar. Does one of these sound like something you would like to try? Sentence8: No thank you. That is all. Sentence9: The Ugly Duckling is located at 12 St. Johns Street City Centre. Their postcode is cb21tw. Is there anything more I can help with? Sentence10: There's a train that leaves at 17:29 and arrives by 18:07. Does that sound okay? Sentence11: I am sure I do, where would you like to go? Sentence12: Yes, that would work. What is the price of a ticket? Sentence13: There are several Chinese restaurants in the centre of town. What price rnge are you looking for? Sentence14: I prefer something expensive. Question: Who has spoken the sentence 13? (A) User (B) System

Ex Output:
Answer: (B) System


Ex Input:
Sentence1: Yes, I am looking for a train leaving Cambridge going to Norwich on Friday. Sentence2: There are 4 boat attractions. What area of town would you like? Sentence3: Not sure what area, but could you pick one for me and tell me the address and phone number? Sentence4: Booked! TR4093 is your train, reference number is 08QY408D . 105.6 is the total fee. It leaves at 18:36 and arrives at 19:55. Sentence5: There are 19 trains from Cambridge to Norwich on Friday. Is there a particular time you'd like to leave or arrive? Sentence6: Sure, Camboats is always a good bet. Their address is the plough, green end, fen ditton, and postcode is cb58sx. Can I help you with anything else today? Sentence7: Thank you, you too. Sentence8: Yes, I would like to book the one that arrives closest to 20:30. I will need tickets for 6 people. Sentence9: Have a good day. Sentence10: I'd like to leave on Friday and arrive by 20:30. Sentence11: Excellent. Have a great rest of your day! Sentence12: Alright, you have plenty of options. The first train available leaves at 5:36, and they run every hour until 18:36. Would you like to book one of these trips? Sentence13: I have everything I need. Sentence14: I am looking for places to go in town, preferably something with boats. Question: Who has spoken the sentence 10? (A) User (B) System

Ex Output:

Answer: (A) User


