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

Example Input: Sentence1: Is there anything else I can help you with Sentence2: Okay! What is your departure site? Sentence3: Okay, I've got you a black bmw with the contact number 07083984796. Sentence4: Thank you so much! Sentence5: I need to book a taxi to come pick me up by 10:30 to take me to Midsummer House Restaurant. Sentence6: I'm coming from city stop restaurant. Question: Who has spoken the sentence 1? (A) User (B) System
Example Output: Answer: (B) System

Example Input: Sentence1: Are there any with a 5 star rating? Sentence2: I'm looking for a place to stay with free wifi. Can you help me find something moderately priced? Sentence3: You are booked at the acorn guest house. Reference number is ROCCFCM6 . Sentence4: Thank you so much, that is all I need. Sentence5: Unfortunately, none of them have a 5 star rating. Sentence6: Are there any with a 4 star rating? Sentence7: We have plenty of moderately priced options with free WiFi. Do you have any additional preferences? Sentence8: Oh yes, several. Are there any addition preferences on those? Sentence9: Great, enjoy your stay. Bye. Sentence10: Nope, any 4-star moderate place with wifi will be fine. Could you book a room starting Saturday for 3 nights, 5 people? Question: Who has spoken the sentence 6? (A) User (B) System
Example Output: Answer: (A) User

Example Input: Sentence1: I have 13 trains that would work. They depart every hour, starting at 11:32. What time would you like to arrive in Cambridge? Sentence2: I can help you with that, how many tickets do you need? Sentence3: I want the restaurant to be expensive. Sentence4: I just need information right now. Would you choose a train leaving after 11:00? I need the train ID, arrival time and price, please. Sentence5: I need to take a train, I want to leave on Wednesday after 11:00. Sentence6: There are six options but my personal favorite is saffron brasserie, would you like a booking or just more information? Sentence7: Thank you , can you help me find an Indian restaurant in the centre? Sentence8: From broxbourne to cambridge. Sentence9: sure, what is your destination? Sentence10: There are several Indian restaurants to choose from, are you looking for a certain price range? Sentence11: Arrival time doesn't matter as long as I leave after 11:00. Sentence12: I trust your opinion. Please book a table at Saffron Brasserie for 5 people at 15:15 on Wednesday. Sentence13: Your reservation was made at the saffron brasserie. Your reference number for your reservation is 0B8PEDPB . Sentence14: Thanks for using the Cambridge TownInfo Centre. Goodbye! Sentence15: TR5953 arrives by 12:32 and costs 17.90 pounds per ticket. The travel time is 60 minutes Sentence16: Thank you so much. That was everything I needed! Question: Who has spoken the sentence 7? (A) User (B) System
Example Output:
Answer: (B) System