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

Example Input: Sentence1: Thank you goodbye. Sentence2: the cow pizza kitchen and bar is a moderately priced gastropub in the centre of town. It's located on Corn Exchange Street, and the phone number is 01223 308871. Sentence3: Can I have the address and phone number of a gastropub in the centre of town? Sentence4: There are three gastropub restaurants listed. One is in the east part of town and the rest are in the centre. Sentence5: I would like the address and phone number of the one in the east part of town. Sentence6: A moderate priced irish food restaurant. Sentence7: thank you and good bye Sentence8: there are no irish restaurants. Would you like to choose another type of food? Sentence9: I'm sorry, it appears there are no results for the east part of town. Our system is having difficulty of some sort. Sentence10: Yes, could you please check whether there is a gastropub? Question: Who has spoken the sentence 7? (A) User (B) System
Example Output: Answer: (B) System

Example Input: Sentence1: Yes, there are 2 in the north, 1 in the east and 1 in the centre. Which would you be interested in? Sentence2: Train TR8464 leaves at 11:21 and arrives at 12:10. Would you like to book that one? Sentence3: Actually none of the pools in our database have an entrance fee listed. Is there anything else I can help you with? Sentence4: Im leaving from Cambridge and going to Stevenage. Sentence5: I'm looking for a train to stevenage, leaving on Sunday. Sentence6: Do you have entrance fees for any of the others? Sentence7: No, I need to leave some time after 14:30, and I'll be traveling to Cambridge. Sentence8: Thank you for contacting Cambridge TownInfo centre. I hope you have a pleasant trip! Goodbye! Sentence9: No thank you that is all the information I need today. Sentence10: Before we do that are there any attractions that feature a swimming pool in town? Sentence11: There are many trains at that time, where are you leaving from? Sentence12: What is the name, entrance fee, and phone number of the one in the center? Sentence13: the 1st train out of cambridge going to stevenage is at 15:21 arriving at 16:10. shall I get a ticket for you? Sentence14: The name is Parkside Pools. The entrance fee is not listed in our database, but you could probably get it by calling them at 01223446100. Question: Who has spoken the sentence 8? (A) User (B) System
Example Output: Answer: (A) User

Example Input: Sentence1: Sounds good. Please make a reservation for 3 next Wednesday at 14:15. I would like a reference number. Sentence2: Since I like Chinese food, could you see if any restaurants serve both Thai and Chinese food? Sentence3: Lets go with chinese food. He likes chinese just as much. Can you recommend one in the centre? Sentence4: Could you recommend an expensive restaurant in the city centre? Sentence5: I cant get you a table there. How about tang chinese instead. Your reference number is SAG9PAI9 . They have better food. Sentence6: I apologize I do not have any listed that serve both cuisines. Would you prefer one type of food? Sentence7: You're welcome! Have a great day! Sentence8: I can book a table at bangkok city for 2 when would you like the reservation? Sentence9: It's for my friend's birthday and he really likes Thai food. Sentence10: That is fine. Thank you. Sentence11: I show several restaurants in the City Centre. If you could perhaps indicate what type of food you would like it would narrow my search further. Sentence12: I have the ugly duckling in the centre. Would you like to make a reservation there? Question: Who has spoken the sentence 6? (A) User (B) System
Example Output:
Answer: (A) User