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

Example Input: Sentence1: Nothing in particular. Any recommendations? Sentence2: Yes, please coming in on monday for 5 nights for 3 people. Sentence3: We have amazing various of attractions in the centre area! What type of attraction are you looking for? Sentence4: I booked it for you. Your reference number is as follows: 5MM5C3UC . Is there anything else I can assist you with today? Sentence5: Any area is fine are there any with a 3 star rating? I don't need free parking or internet. Sentence6: Let me suggest the Museum of Archaeology and Anthropology. Their admission is free and the phone number is 01223333516. Sentence7: Would you like me to book it for you? Sentence8: Happy to help! Have a good trip! Sentence9: I have many moderate priced hotels available. What part of town would you prefer? Sentence10: alpha-milton guest house is in the north. Would you like me to book you a room? Sentence11: Can you book it for me and get a reference number ? Sentence12: i need a good place to go in the centre Sentence13: That will be all, thanks! Sentence14: I also need a moderate priced place to stay. Question: Who has spoken the sentence 7? (A) User (B) System
Example Output: Answer: (B) System

Example Input: Sentence1: Let's go with the cheap one. I'll need a table for 7 on Sunday at 12:15 please. Sentence2: Can you try on saturday, 7 people, at 12:15 Sentence3: you're in luck I have two options for you. One is in the cheaper price range, the other is listed as moderately priced. Do you have a preference? Sentence4: Unfortunately the booking was not successful. Sentence5: Yes, you're booked for Saturday with reference number V54FG5X2 . The table will be reserved for 15 minutes. May I help with anything else? Sentence6: Thank you, goodbye! Sentence7: No, that's all I need. Thanks for your help! Sentence8: Yes I would like to find Spanish food in the center of town. Question: Who has spoken the sentence 7? (A) User (B) System
Example Output: Answer: (B) System

Example Input: Sentence1: Sheep's Green and Lammas Land Park Fen Causeway is located at Fen Causeway, Newnham road, postal code cb322ad. Sentence2: I'm happy I was able to help you today. Call the Cambridge TownInfo centre whenever you like! Sentence3: Alright. What type of places? Cambridge has a wide array of things to do and places to go such as, museum's, nightclubs, parks and restaurants. Sentence4: I would like to visit a park. Could you find one and give me the address and postcode? Sentence5: I have booked your train. The reference number is JI5O0VTT . The fee is 7.84 GBP payable at the station. Sentence6: Thanks! I'm also looking for a train from Cambridge to Kings Lynn. Sentence7: That's all I need. Thank your for your help. Sentence8: The earliest train is TR7604. It arrives at 19:58. Would you like me to book a ticket? Sentence9: I'll be sure to so that, bye. Sentence10: Yes, please book 1 ticket. May I have the reference number? Sentence11: I would like to leave on Saturday after 18:45. Sentence12: Do you have a day you would like to travel? Sentence13: Thank you for using our system. Sentence14: I am looking for places to on the south side of town. Question: Who has spoken the sentence 4? (A) User (B) System
Example Output:
Answer: (A) User