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

[EX Q]: Sentence1: There are 2, both free. They are sheep's green and lammas land park fen causeway, and other is wandlebury country park. Would you like information on either one? Sentence2: There are only 4 boat attractions in town. Camboats in the east. Riverboat georgina is in the north. Scudamores punting company and the cambridge punter are in the centre of town. Sentence3: I'm looking for boats to look at. Can you look in the south? Sentence4: Thanks, could you also book me a taxi between the two locations please? Sentence5: I can arrange a car for you if you'll tell me whether you'll be travelling from the park to the restaurant or vice-versa, and tell me the date and time. Sentence6: Yes, I need to get their phone number and address, please. Sentence7: Could I get the entrance fee for wandlebury country park please? Sentence8: Booking was successful. Expect a grey Lexus. Their number is 07386542982. Anything else? Sentence9: I need to leave the park by 16:15. Sentence10: There are nine places in the south any preference on restaurant type or price range? Sentence11: Are there any boats in the park? Sentence12: The Pizza Hut Cherry Hinton is located in the South and has a moderate price range. Would you like more information? Sentence13: My pleasure. Enjoy your stay. Sentence14: Could you help me find a restaurant in that area? Sentence15: The park is free. There is no entrance fee. Sentence16: Their phone number is 01223323737, and they are located at G4 Cambridge Leisure Park Clifton Way Cherry Hinton. Sentence17: Thank you. Are there any parks in the south? Sentence18: Thank you for all your help. That should be everything today. Sentence19: I'm afraid we don't have any boats in the south. Would you like to try another area? Sentence20: I'd like a moderately priced Italian place. Question: Who has spoken the sentence 5? (A) User (B) System
[EX A]: Answer: (B) System

[EX Q]: Sentence1: Of course. Their telephone number is 01223362525. Would you like any more information? Sentence2: TR1339 arrives at 24:07 and takes 38 minutes to arrive there. Sentence3: Thank you. I will also need to find a restaurant that serves Mediterranean food and should be in the expensive price range. Sentence4: What day and time are you leaving Cambridge? Sentence5: Sure, their address is Thompsons Lane Fen Ditton. Is there anything else I can help you with? Sentence6: nope. i think that is all. enjoy your day and stay out of the rain. bye Sentence7: La Mimosa is a great expensive Mediterranean restaurant in the centre. Would you like to book a table? Sentence8: You have a great day, too. Thanks for calling. Goodbye. Sentence9: What is the arrival time? Sentence10: TR1339 is leaving at 23:29 and it is priced at 10.10pounds. can i book? Sentence11: I'm leaving after 18:45 on thursday. Sentence12: I'd like some information on a train going to bishops stortford departing from Cambridge. Sentence13: No I would just like their telephone number please. Sentence14: Can I get their address please? Question: Who has spoken the sentence 2? (A) User (B) System
[EX A]: Answer: (A) User

[EX Q]: Sentence1: There are five trains that meet your needs. Te earliest arrives by 19:01, the latest arrives by 24:01. Would you like me to book a seat for you? Sentence2: I can help you with that, where will you be departing from? Sentence3: Broxbourne. And is should have free parking in the CHEAP price range. I am very frugal Sentence4: What is the postcode? I want to make sure I don't have any enemies in the area. Sentence5: I also need a 4 star hotel with free parking. Sentence6: The post code for the cambridge belfry is: cb236bw Sentence7: May I please have the price first? Sentence8: I will be departing from Cambridge, going to Broxbourne. I would like to leave after 17:45 on Thursday. Sentence9: The ticket price is 17.90 pounds.What else may I do for you? Sentence10: There is The Cambridge Belfry located in the west. I'm not sure if this is the area you're looking for. Would you like more information? Sentence11: Hi, could you possibly help me find a train for my upcoming trip? I've been put in charge of the plans. Sentence12: I have three hotels that meet your needs. Is there a specific area you'd like to be in? Question: Who has spoken the sentence 1? (A) User (B) System
[EX A]:
Answer: (B) System