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

[EX Q]: 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
[EX A]: Answer: (B) System

[EX Q]: Sentence1: Thank you goodbye. Sentence2: the cow pizza kitchen and bar is a moderately priced gastropub in the centre of town. It's located on Corn Exchange Street, and the phone number is 01223 308871. Sentence3: Can I have the address and phone number of a gastropub in the centre of town? Sentence4: There are three gastropub restaurants listed. One is in the east part of town and the rest are in the centre. Sentence5: I would like the address and phone number of the one in the east part of town. Sentence6: A moderate priced irish food restaurant. Sentence7: thank you and good bye Sentence8: there are no irish restaurants. Would you like to choose another type of food? Sentence9: I'm sorry, it appears there are no results for the east part of town. Our system is having difficulty of some sort. Sentence10: Yes, could you please check whether there is a gastropub? Question: Who has spoken the sentence 7? (A) User (B) System
[EX A]: Answer: (B) System

[EX Q]: Sentence1: Thank you! Can I also have the address, please? Sentence2: Happy to help, have a nice day. Sentence3: The area doesn't matter but can you recommend one and give me their address? Sentence4: I have 23 museums. Can you help me narrow what area you would like to be in? Sentence5: I would like to be picked up from the hotel by 06:30 Sentence6: its address is 78-80 Milton road Sentence7: That's all, thanks a lot. Sentence8: Admission is absolutely free! Sentence9: Your booking was successful. It will be a yellow audi and the contact number os 0747386590. Is there anything else I can assist you with today? Sentence10: i want to check out a museum Sentence11: My favorite is the Broughton House Gallery, located at 98 King Street. Sentence12: Thank you, have a nice day! Sentence13: Great. Thanks! I also needed to find a taxi, can you assist me with that? Sentence14: Where would you like to be picked up and at what time? Sentence15: What is the entrance fee there? Sentence16: It's a guesthouse in north, 4 stars, moderate price. Sentence17: Contact the Cambridge TownInfo centre if you need anymore help. Goodbye! Sentence18: Sweet!. Can you give me informatin on a place called home from home? Question: Who has spoken the sentence 3? (A) User (B) System
[EX A]:
Answer: (B) System