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: i'm sorry, i was unable to find a different hotel that matches your criteria and the availability that you wanted. Sentence2: Good day, thank you for using us, if you need anything else let is know. Sentence3: Yes, I'm looking for an expensive hotel to stay at, can you help me? Sentence4: Is there a specific side of town you'd like to be on? Sentence5: Yes. I would like to stay at University Arms for 2 people, for 2 nights, starting from Friday. Sentence6: Booking was unsuccessful. Would you like to find another hotel? Sentence7: That's too bad. Would you be able to find me a different hotel in the same price range? Sentence8: Are both hotels or are they guest houses? Sentence9: Hold on, I forgot about the Gonville Hotel I mentioned earlier. I got you a room. Your reference number is : B01G0B4W. Can I do anything else? Sentence10: Thats disappointing,thank you andgoodbye. Sentence11: Yes, I would like to stay in the city centre. Also, I would need free parking. Sentence12: That is all. Thank you. Sentence13: You have the Gonville Hotel or the University Arms to choose from. The Gonville is a 3 star hotel while the University Arms is 4 star. Sentence14: They are both hotels. Would you like for me to book one of these hotels for you? Question: Who has spoken the sentence 6? (A) User (B) System

Output: Answer: (A) User

Input: Consider Input: Sentence1: Let us know if you need anything else. Sentence2: Certainly, the address for Cityroomz is sleeperz hotel, station road postcode cb12tz. Is there anything else I can help you with? Sentence3: Great. Could you please tell me the entrance fee? Sentence4: im glad to have satisfied you Sentence5: I have 1 hotel and a 2 guesthouses available. Do you have a preference on the area or if it is a hotel or guesthouse? Sentence6: Thanks again. That's all I needed. Sentence7: There is no entrance fee. Sentence8: Cityroomz meets that description. Would you like to book it? Sentence9: May I please have the address and postcode for Cityroomz? Sentence10: Are there any nearby museums? Sentence11: The cambridge contemporary art museum is nearby. Sentence12: Wonderful! That is all I needed. Thank you so much! Sentence13: I would prefer a hotel that is in the centre of town and moderately priced if that helps narrow it down. Sentence14: Hi, I'm looking for a hotel, a 0 star hotel is fine as long as it includes free wifi. Question: Who has spoken the sentence 2? (A) User (B) System

Output: Answer: (A) User

Input: Consider Input: Sentence1: You are welcome. Please call back if you need anything else. Sentence2: The phone number is 01223217300 and post code is CB20QQ. Sentence3: Do you need any further assistance? Sentence4: Great, thanks for your help. Sentence5: I want to find a hospital in town. The hospital should have the hepatobillary and gastrointestinal surgery regional referral centre department Sentence6: Addenbrookes Hospital is located at Hills Rd, Cambridge. They have the department you're looking for, would you like the phone number? Sentence7: That was all. Thanks Sentence8: I need the address, postcode, and phone number. Question: Who has spoken the sentence 1? (A) User (B) System
Output: Answer: (B) System