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

Ex Input:
Sentence1: The Cambridge Belfry is a hotel on the west side and is inexpensive. Their phone number is 01954714600. Sentence2: Can I get their postcode please? Sentence3: What can you tell me about Finches Bed and Breakfast? What area are they in? Sentence4: Yes, I'll also need a taxi to commute between the two places. I'll need to arrive at the restaurant by the dining time. Sentence5: Chiquito restaurant and bar is in the south area, what time would you like me to book your 4 people for? Sentence6: That's great. Everything is set. Thank you for helping me. Goodbye. Sentence7: i booked your taxi. it will be a blue lexus coming. their phone number is 07566783718. Sentence8: The table has been booked. Your reference number is PQPB99PP . Can I help you with anything else? Sentence9: You're welcome, have a great day! Sentence10: yes four people for Friday at 17:30 Sentence11: Postal is cb30nd, and if you need to call them they can be reached at 01223276653, any thing else that I can assist with? Sentence12: Okay, how about Mexican food in the south? I'll be needing a table for 4 this Friday. Sentence13: finches bed and breakfast Is in the west, it is cheap, 4 star guesthouse, free internet and parking. Do you need anything else? Sentence14: I would like an inexpensive hotel on the west side of town. Question: Who has spoken the sentence 1? (A) User (B) System

Ex Output:
Answer: (B) System

Ex Input:
Sentence1: I am also looking for Cambridge Contemporary Art. Sentence2: Can you give me their entrance fee and phone number? Sentence3: Maybe. What is the star rating and price range on that hotel? Sentence4: Are there any available rooms in the Autumn House? Sentence5: You're welcome. Enjoy your stay. Sentence6: You are all set. Your taxi would be a red lexus and you can contact them at 07614169632. Is there anything else I can help? Sentence7: no problem. Their phone number is 01223324222 and the entrance fee is free. Sentence8: Sure, I have found it for you. Is there anything you want to know about? Sentence9: That's all i need. Thank you so much for the help! Sentence10: Autumn house has a guesthouse. When are you looking to stay? Sentence11: it has four stars and its cheap Sentence12: Awesome. Can you also help me to book a taxi from the hotel to the attraction? I want to leave the hotel by 24:45. Question: Who has spoken the sentence 5? (A) User (B) System

Ex Output:
Answer: (B) System

Ex Input:
Sentence1: There are 44 attractions in the center of town. Is there a particular kind of attraction you'd be interested in? Sentence2: Can I get their phone number and address, too? I also need to book a train from Cambridge arriving by 10:15 on Friday. Sentence3: I apologize. I need to clarify that I'm looking for an entertainment type of attraction in the center of town. Sentence4: That's all I needed, thank you very much! Sentence5: Yes! The Cambridge University botanic gardens are in the centre and the entrance fee is 4 pounds. Sentence6: What trains do you have going to Bishops Stortford on Friday? Sentence7: You're very welcome. Have a lovely day. Sentence8: Are there any parks in the centre of town? Sentence9: There are 10 trains that go to Bishops Stortford, did you know what time you would like to arrive by? Sentence10: I am looking for suggestions on where to go in town, I would like it to be entertaining and in the centre. Sentence11: Tr6809 leaves Cambridge at 07:29. It has a travel time of 38 minutes and costs 10.10 pounds. Do you need any thing else today? Sentence12: The Museum of Archaelogy and Anthropology is free to enter. Would you like the address? Sentence13: Just some kind of entertainment. Sentence14: There is a nightclub called club salsa if you like to dance. Would you like more information? There are also some museums and cinemas if that sounds better. Sentence15: What is the entrance fee for the museum please. Sentence16: Thanks. Will you be able to book me that train? Sentence17: There are 3 trains that arrive before 10:15. One that arrives at 6:07, another at 8:07 and another at 10:07. Which would you prefer? Sentence18: I need to arrive by 10:15. I won't need you to book tickets for me, but the trainID, travel time, and price would be super helpful. Sentence19: There are no entertainment attractions in the centre of town in the system. Sentence20: The one for 8:07. I just need the train id, travel time, and price. No need to book it. Sentence21: The address for the botanic gardens is bateman street and the phone number is 01223336265. Sentence22: Sure thing what destination and departure are you looking for on your train? Question: Who has spoken the sentence 19? (A) User (B) System

Ex Output:
Answer: (B) System