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

Ex Input:
Sentence1: Thank you, and have a nice day! Sentence2: How about the Alexander bed and breakfast in the town centre? It is cheap and has free parking. Sentence3: I have a Norwich bound train leaving at 18:36, price of 17.60 pounds and traindID of TR7776, would you like me to book it? Sentence4: Yes please, for all seven of us. Sentence5: Is that a 2 star hotel? Sentence6: I'm so sorry, the Lovell doesn't have the availability you're looking for either. Would you like to try to book for a shorter stay? Sentence7: I would like a 2 star hotel. Sentence8: Can you try booking a 1 night stay? I need the reference number if that works. I also need a train leaving Cambridge after 17:45, arriving in Norwich on Wednesday. Sentence9: I have booked your stay at Lovell Lodge. Your reference number is ATYKA57C . Would you like me to buy tickets train tickets also? Sentence10: Yes. Thank you very much. Sentence11: There are 2 moderately priced 2 star hotels on the North side of town: the Ashley Hotel and the Lovell Lodge. Would you like more information on one? Sentence12: Hi I am looking for a place to stay with free parking in the cheap price range. Sentence13: What about moderately priced places with 2 stars? Sentence14: And would that be for the seven people that are staying at the hotel? Sentence15: Not at the moment. Can I have the price and train ID though? Sentence16: Does the Lovell have 3 nights available? Sentence17: Could you book 3 nights at the Ashley for 7 people, please? We'll be arriving on Tuesday. Sentence18: No, I think that's all. Thanks! Sentence19: Is there anything else I can help you with? Sentence20: The Alexander B&B is a 4 star hotel. There are no cheap hotels with 2 stars that offer free parking. Do you want to broaden your search? Sentence21: I'm sorry, it isn't available for 3 nights. Would you like to arrive on a different day or stay for less time? Sentence22: We have several locations that suit your needs, would you like a 4 star hotel? Or is there any other accommodations you'd like to narrow down the list? Question: Who has spoken the sentence 9? (A) User (B) System

Ex Output:
Answer: (B) System


Ex Input:
Sentence1: Which day would you like to leave? Sentence2: i want to leave on friday Sentence3: I'm looking for a decent place to dine in Cambridge please. Sentence4: Their phone number is 01223324033 and address is Regent Street City Centre. Was there anyting else I could help you with? Sentence5: I would like to book a train to ely, from cambridge. Sentence6: The train should leave after 11:15. Thanks Sentence7: We have 15 italian places Cambridge, do you have and needs as far as area and pricing? Sentence8: how about canapes food? Sentence9: What type of cuisine are you interested in? Sentence10: Sorry, we don't have any places serving canapes food. Would you like to search for something else? Sentence11: Could you please try for Italian ? Sentence12: No thanks. I just need the address, postcode, and phone number for this restaurant please. Sentence13: There are 10 trains that meet your criteria. Do you have a departure time or arrival time in mind? Sentence14: We have a great place on Regent Street City Centre called Pizza Express that you are sure to love. Would you like me to make reservations for you? Sentence15: Train TR0767 leaves Cambridge at 11:50 and arrives at ely at 12:07. The fare is 4.40 pounds. The travel time is 17 minutes. Do you want me to book this? Sentence16: Have a lovely day, goodbye! Sentence17: no thats all the information i needed. thanks Sentence18: Lets try for a moderately priced place in the centre. Question: Who has spoken the sentence 17? (A) User (B) System

Ex Output:
Answer: (B) System


Ex Input:
Sentence1: Can you help me find somewhere to stay in the south? I want it to be moderately priced please. Sentence2: there are 2. one with 4 star another with 3. which one do you prefer? Sentence3: First, may I have the address for the rajmahal restaurant? Then, I want to get from the hotel to the restaurant, please. Sentence4: Either is fine but I would need to have wifi included, this is a business trip. Sentence5: How about the 4 stars one. Sentence6: Rajmahal is located at 7 Barnwell Road, Fen Ditton in the east side. I've also booked your taxi, departing by 21:00. You'll be taking a yellow VW, the number is 07875116115. Sentence7: I have many to choose from. Can you specify the area? Sentence8: thank you that will be all Sentence9: Yes, please. I would also like a taxi to leave the hotel by 21:00. Sentence10: I would like it in the south. Sentence11: Alright, and what is your destination? Sentence12: I have 2 that offer free wifi. One is rated 3 stars, the other is 4. Do you have a preference? Sentence13: Not right now. I'm also looking for a restaurant in the same price range that serves Indian food. Can you help me with that? Sentence14: It looks like there aren't any in the south. Would you like to try a different area? Sentence15: rajmahal is in the west and moderately priced, shall I book you? Sentence16: I'm glad I could assist you today. Have a good rest of the day. Sentence17: No, how about indian food? Sentence18: That would be the Aylesbray Lodge Guest House. Would you like to make a booking? Question: Who has spoken the sentence 17? (A) User (B) System

Ex Output:

Answer: (B) System