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

Ex Input:
Sentence1: Let's go with the cheap one. I'll need a table for 7 on Sunday at 12:15 please. Sentence2: Can you try on saturday, 7 people, at 12:15 Sentence3: you're in luck I have two options for you. One is in the cheaper price range, the other is listed as moderately priced. Do you have a preference? Sentence4: Unfortunately the booking was not successful. Sentence5: Yes, you're booked for Saturday with reference number V54FG5X2 . The table will be reserved for 15 minutes. May I help with anything else? Sentence6: Thank you, goodbye! Sentence7: No, that's all I need. Thanks for your help! Sentence8: Yes I would like to find Spanish food in the center of town. Question: Who has spoken the sentence 7? (A) User (B) System

Ex Output:
Answer: (B) System


Ex Input:
Sentence1: Can you give me more information about shopping? Sentence2: There are two hotels meeting your criteria. Can I recommend Gonville Hotel in the Centre area. It has parking and internet. Do you want that booking? Sentence3: There is nothing that is 3 stars which includes wifi, can I check for something else? Sentence4: I need you to find me a hotel with free wifi and a star rating of 3 in the west. Sentence5: There are no 3 star locations with parking. Sorry. Is there anything else I can help you with toay? Sentence6: What date are you checking in and how many are in your party? Sentence7: I'm sorry but i'm confused. Where would you like reservations at? Sentence8: the postcode is cb30ds Sentence9: What area of town will you be shopping in? Sentence10: I will be in the west part of town, but I think I am more interested in college visits if you could help me with that. Sentence11: Nothing matching your criteria exists on the west side.s location matter? Sentence12: No, the location does not matter. Sentence13: Hmm can you check one more time, it should really be a hotel. Sentence14: Actually, I wanted a 3 star hotel with wifi, not parking. Can you check again? Sentence15: No the area doesn't matter as much, please provide me with the reference number. Sentence16: Thanks! I'm also looking for somewhere to stay. Any hotels? Maybe around a 3 star, and I need wifi. Sentence17: Sure, what's the postcode for that college? Sentence18: I have 5 in the west can I recommend churchill college? Sentence19: book it for 2 people and 2 nights starting from sunday. Sentence20: Sorry, I'm not seeing anything that matches your request. Would you want to try a guesthouse? Sentence21: There are two, does the area matter to you? Sentence22: Can you recommend a 3 star hotel then? I'd like a room for 2 nights on sunday, for two people. Question: Who has spoken the sentence 5? (A) User (B) System

Ex Output:
Answer: (B) System


Ex Input:
Sentence1: No, but it should have free wifi, 4 stars, and free parking. Sentence2: Certainly, is there an area of town you prefer? Sentence3: The Place is a nightclub in the south part of town. I'm sorry, i do not have the entrance fee. Their phone number is 01223324600. Is there anything else? Sentence4: No. You can pick the hotel. I will need it for 3 people lasting 2 nights, from Friday. Sentence5: No, that's all I needed! Thanks you've been so helpful! Bye! Sentence6: Yes, I need the reference number. Sentence7: What is the entrance fee and the phone number for the one in the south? Sentence8: There are quite a few options that match your needs -would you prefer cheap or moderately priced? Sentence9: You are most welcome. Enjoy your visit! Sentence10: I am looking for a place to stay with 4 stars. Sentence11: Booking was successful. Reference number is : UUJ3X14V . Sentence12: I have booked you a room at the Acorn Guest House. They are at 154 Chesterson Road, CB41DA. Their phone number is 01223353888. Can I help you with anything else? Sentence13: I have 6 night clubs in the city, 5 are in the centre and 1 is in the South? Would you like info on any of them? Sentence14: Thanks! I am also looking for suggestions for night clubs. Question: Who has spoken the sentence 13? (A) User (B) System

Ex Output:

Answer: (B) System