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

Example Input: Sentence1: i am looking for information in Cambridge. Sentence2: I can certainly help you with that! What do you want to know? Sentence3: The hotel should have a star of 4 and should include free parking. Sentence4: I'd like to stay at a guesthouse that offers free wifi. Sentence5: The Alexander bed and breakfast is a great place. Do you need a reservation? Sentence6: Acorn Guest House would be perfect for your needs. Sentence7: yes, please. 6 people for 3 nights starting on thursday. Sentence8: Do you have a price range or area preference? Because if not, how about a and b guest house located in the east and moderately priced. Question: Who has spoken the sentence 2? (A) User (B) System
Example Output: Answer: (A) User

Example Input: Sentence1: Cambridge artworks is wonderful! They are located at 5 greens road cb13ef. There phone number is 01223902168. Sentence2: Yes, there are 4 museums. Three are free and one has a 5 pound entrance fee. Are you looking for a gallery? Sentence3: What do you recommend? Sentence4: Can you help me find a place to go in the east? Sentence5: Thank you. That's all I needed. Sentence6: I'm also looking for a place to eat. I don't mind where, but I want an expensive chinese place. Sentence7: Ok. I booked a taxi for you. It is a blue audi and the contact number is 07155610417. Sentence8: You're welcome, goodbye! Sentence9: A recommendation would be fine. Can I get the area they're in and post code? Sentence10: I'd also like to book a taxi between the two places. I'd like to leave the restaurant by 2:30 Sentence11: There are 9 options that fit your criteria. Would you like a recommendation or would you like to narrow it down further? Sentence12: We have 5 very nice attractions in the east, do you have an idea of type of activity that would best match your needs? Sentence13: I recommend yu garden. It is located in the east. The address is 529 Newmarket Road Fen Ditton. Postcode cb58pa. Sentence14: Is there a museum I could go to on that side of town? If so, please provide phone number, address, and postcode. Question: Who has spoken the sentence 3? (A) User (B) System
Example Output: Answer: (B) System

Example Input: Sentence1: Thank you very much, you too. Sentence2: Your are very welcome! Enjoy your stay here. Sentence3: How about italian food? Sentence4: Yes, I also need a place to stay, free parking is not required, I would prefer a 0 star rating. Sentence5: That won't be necessary. I need the price range and postcode. Sentence6: I'm sorry I have no results for a scottish restaurant in the centre area. Is there another type of cuisine you'd like to try for? Sentence7: Are there any good Scottish restaurants in the centre? Sentence8: My favorite is Stazione. It's an expensive place located in postcode cb23nj. Their phone number is 01223352607. Can I help you with anything else today? Sentence9: I have several in the area, is there a price range you prefer? Sentence10: Cityroomz is a 0 star hotel in the centre with no parking available. It is moderately priced. Would you like me to make a reservation for you? Sentence11: Thanks for all your help. Goodbye! Sentence12: Thank you for contacting Cambridge TownInfo Centre, have a great day! Sentence13: Cityroomz is a moderate priced offering and the postcode is cb12tz. Is there anything else I can help you with today? Sentence14: It doesn't matter. I need to know what the price range is though, postcode and phone number too please Sentence15: You're welcome, have a nice day. Sentence16: No, everything I asked of you has been met. Thank you. Sentence17: Is this hotel in the same area as the restaurant? Sentence18: Yes they are both located in the centre. Would you like a reservation? Question: Who has spoken the sentence 9? (A) User (B) System
Example Output:
Answer: (B) System