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

Input: Consider 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

Output: Answer: (B) System


Input: Consider Input: Sentence1: I'd like to dine in the center of town, please. Sentence2: Could you give me the address and phone number for the Slug and Lettuce please. Sentence3: I'm looking for a place to dine that serves gastropub food. I want it to be expensive. Sentence4: You're quite welcome! Thanks for contacting the Cambridge TownInfo Centre and have a great day! Sentence5: The slug and lettuce is located at 34 - 35 Green Street, postcode cb23ju. I'm sorry our system does not list their phone number. Is there anything else? Sentence6: I have two in the centre, the Backstreet bistro and The Slug and Lettuce. Would you like for me to make you a reservation? Sentence7: I wish you could provide their phone number. But other than that you've given me everything I need to know. Thank you goodbye. Sentence8: We have 3 options in Cambridge for expensive gastropub food. Would you prefer a place in the centre or in the east? Question: Who has spoken the sentence 3? (A) User (B) System

Output: Answer: (B) System


Input: Consider Input: Sentence1: I would like one in the centre area, please. Sentence2: That sounds good! Can you book a table for 6 people at 12:45 on Wednesday? Sentence3: How about Eraina, which serves European food and is located in the centre of town and is in the expensive price range? Sentence4: There are no restaurants anywhere in Cambridge that describe their cuisine as "unusual." Would you like to broaden your search criteria? Sentence5: I have 5 european restaurants to choose from. I have options in the centre, north and west. Which would you prefer to dine in? Sentence6: Hmm. I'm not sure. It needs to be expensive, and I really had my heart set on unusual. Sentence7: That booking was successful, the table will be reserved for 15 minutes. Your reference number is 4OQDTI8C . Is there anything else I can help you with? Sentence8: I'm sorry, there is nothing meeting your criteria. What other type of cuisine would you like? Sentence9: You're welcome, enjoy your meal. Sentence10: I want to eat someplace with unusual food. Price is no object. What can you suggest? Sentence11: I think that is all I need. Thank you. Sentence12: Then find a European one. Question: Who has spoken the sentence 9? (A) User (B) System


Output: Answer: (B) System