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 I don't. Pick any of the 33 and give me the address and area, please. Sentence2: I have 33 entries that match your request. Do you have a star rating preference? Sentence3: Yes, what time does that train leave? Sentence4: The alexander bed and breakfast is a cheap 4-star guesthouse in the center, how does that sound? Sentence5: I don't need any specific area, just need a guesthouse that is cheap and includes free parking. Sentence6: Perfect. Thank you. That's all the information I need for Cambridge. You have been a great help! Sentence7: I need to find a Train leaving on Friday from London Liverpool Street and arriving in Cambridge. Sentence8: The TR5015 will get you there by 15:07. Would you like me to book you some seats? Sentence9: I have 10 trains as options. Do you have a time you want to leave or arrive by? Sentence10: Can you tell me what area it's in? And can you give me an address? Sentence11: Please book it for me.I also need a place to stay,a guesthouse with free parking ? Sentence12: The travel time is 88 minutes. Can I help you with anything else? Sentence13: Yes I'd like to arrive in Cambridge by 15:15. Sentence14: We hope you enjoy your stay. Goodbye. Sentence15: No thank you, may I please get the travel time of TR5015? Sentence16: Sure. What area would you like to stay in? Sentence17: Alexander bed and breakfast in found in the center of the town. Their address is 56 saint barnabas road. Sentence18: Thank you, I'm also looking for a place to stay. Can you help me find someplace? Sentence19: It would depart at 13:39 and arrive in Cambridge at 15:07. Sentence20: I have booked the train for you. The reference number is JN7FFTTY . Question: Who has spoken the sentence 5? (A) User (B) System
Example Output: Answer: (B) System

Example Input: Sentence1: Can you tell me more about gourmet burger kitchen? Where is it? Sentence2: No, that's all I need for now. you've been very helpful. Thanks. Sentence3: They are in the towns centre. Expensive but worth every penny. Would you like to book a table? Sentence4: How about the postcode and attraction type for Byard Art? Sentence5: Thanks, I'm all done here. Sentence6: I have that table reserved. Your reference number is K94DWSQN . Can I help you with a taxi or hotel room? Sentence7: You're welcome. Have a great day! Sentence8: Unfortunately, we do not have information on several of them. But, Byard Art, Wandlebury Country Park, and Sheep's Green and Lammas Land Park are all free admission attractions. Sentence9: I have booked you a taxi that will get you there by 13:15. The car type is a blue Tesla and the contact number 07664553144. Can I do anything else? Sentence10: Enjoy yourself.You can call us if you need anything else Sentence11: no, not really. What are entrance fees on the 8 attractions? Sentence12: What can you tell me about attractions in the south part of town? Sentence13: I need a taxi from Byard Art that will get us to the restaurant on time. Sentence14: We have 8 attractions in the south part of town. Do you have a preference of type? Sentence15: Yes please, a table for 6 people at 13:15 on Tuesday would be amazing. Sentence16: Postcode, cb21sj, and the type is museum. Is there anything else I may help you with? Question: Who has spoken the sentence 3? (A) User (B) System
Example Output: Answer: (B) System

Example Input: Sentence1: I'd like to be in the centre of town. Surprise me with the type! I need to book for 8 people on Wednesday 16:00. Reference number please? Sentence2: I'm a foodie and desperately need to find a restaurant in the centre. I'm treating myself so anything in the expensive range is perfect Sentence3: I also need a place to stay. Cheap guesthouse will do. Sentence4: Hang on, I need to check on that. Sentence5: Thank you. That is all I needed. You have been a wonderful help. Sentence6: Okay just let me know Sentence7: OK, you're booked at the Alexander, reference #6HRQ154C . Can I help you with anything else today? Sentence8: Okay, great! How many will be staying, for how many nights, starting what day? Sentence9: As long as it's cheap, then yes. Sentence10: What time do you need to leave? Sentence11: Alright, I need rooms for the same group on the same day. We'll be staying for three nights. Sentence12: Here's the information about your car: type : red tesla Contact number : 07274986037 Sentence13: Booking at midsummer house restaurant was successful. They serve british food, and the table will be reserved for 15 minutes. Reference number is : 4X5NDCA9 . Sentence14: Thank you, and have a good day! Sentence15: Alexander Bed and Breakfast is located in the centre, rated 4 stars and has free parking and internet. Would you like me to make a reservation? Sentence16: We'll need to get to the restaurant on time so we'll need to arrive by 16:00 to avoid losing our table. Be sure to provide contact number and car type. Sentence17: What type of food would you like to try? I have many different places. Sentence18: yeah, i need a taxi to get me from the hotel to the restaurant. Question: Who has spoken the sentence 14? (A) User (B) System
Example Output:
Answer: (A) User