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

Example Input: Sentence1: No, surprise me. I will need the address and the area, though. Sentence2: I'll need one from leicester to cambridge on saturday, leaving after 16:30 Sentence3: No thanks, that will be all. Sentence4: Is there anything else I can help you with today? Sentence5: I don't need a reservation, I just need the address and the area. Sentence6: Alright. Thanks for using our service and have a nice day. Goodbye. Sentence7: It is the centre area and its address is Free School Lane City Centre Sentence8: Good afternoon! I'd like to visit an expensive european restaurant. Will you help me find one? Sentence9: Okay. Thank you. Sentence10: The train arrives at 18:54 and costs 30.24 pounds. Sentence11: Eraina is a very nice restaurant in the centre. How many in your party? And what day and time should I make your reservation for? Sentence12: What time does it arrive and the price? Sentence13: Where would you like to depart and arrive? Sentence14: Yes there are 5 restaurants that meet your requirements. Do you have a part of town or type of food you prefer? Sentence15: Great,I also need information on getting a train. Sentence16: I have a train for you that leaves at 17:09. Would you like me to book it? Question: Who has spoken the sentence 14? (A) User (B) System
Example Output: Answer: (A) User

Example Input: Sentence1: Your table is booked (ref# SCHAG4OI). What time do you need that taxi? Sentence2: The phone number is 01223240089, and the post code is cb17sr. Is there anything else I can assist you with? Sentence3: Thanks. That is all for now. Sentence4: Aylesbury odge guesthouse,I will book it for you,is there anything else I can do for you ? Sentence5: Are any a guesthouse? Sentence6: Okay. Please call us if we can help you further. We hope you enjoy your stay. Sentence7: the good luck chinese food takeaway is great. Shall i book it ? Sentence8: No I just need you to recommend one for me. Sentence9: I don't need you to book it, I just need the phone number and post code please. Sentence10: Hello, I am looking for a place to stay that has free parking in the South area. Can you help me with that please? Sentence11: What time would you like to dine, and how many will be in your party? Sentence12: Thanks, also looking for a restaurant in the same part of town in the expensive range. Can you recommend one? Sentence13: I'd like it to arrive in time to get us there before 12:15. Sentence14: Yes I have 3 guesthouses matching your criteria. Would you like to book one of them? Sentence15: Your black ford taxi has been booked and your contact number is 07103139053. Sentence16: I have four options ranging in price from cheap to expensive ranging in from 3 to 4 stars. Sentence17: There will be 6 of us. We'd like 12:15 on Saturday please. Sentence18: Please book the restaurant and I also need a taxi. Question: Who has spoken the sentence 7? (A) User (B) System
Example Output: Answer: (B) System

Example Input: Sentence1: Thank you and enjoy your stay here in our lovely city! Sentence2: Nandos is a cheap Portuguese restaurant in the south, would like more information about it? Sentence3: Okay, you are booked, with reference number 58HYUWPB Sentence4: I need to book for Friday for 5 nights. Sentence5: I'm looking for a restaurant in the south serving christmas food. Can you help me? Sentence6: I have booked a red volkswagen for you. The contact number is 07404379938. Sentence7: I have one option for you. It is rosa's bed and breakfast. Would you like a reservation? Sentence8: Yes, can you help me with a cheap guesthouse in the south of town? Sentence9: No, I'd really like cheap Christmas food. How about in a different area? Sentence10: What about a place serving Portuguese food? Sentence11: There will be 7 of us. Sentence12: Yes, could I get the postcode? Sentence13: How many people will be staying? Sentence14: Sure, I can help you with the booking? On what day will you be coming in? Sentence15: Yes, please book the reservation and provide a reference number. Sentence16: I don't have anything that serves Christmas food and is cheap. Sentence17: Postcode cb17dy. Their phone and address is 01223327908, Cambridge Leisure Park Clifton Way. Can I help you with anything else? Sentence18: Thanks you have been great! Sentence19: Sorry, I couldn't find any christmas restaurants in the south. Want to try a different kind of food? Sentence20: I also want to book a taxi to leave Rosa's bed and breakfast by 15:45. I would like the contact number and car type. Question: Who has spoken the sentence 5? (A) User (B) System
Example Output:
Answer: (B) System