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

[EX Q]: Sentence1: We have nine expensive dining establishments on the west side. Cuisines offered are Thai, Indian, European, and British. Do you have a preference? Sentence2: Thank you. Can you please give me the reference number? Sentence3: The reference number is 5WHDPGHW .. Is there anything else I can assist you with? Sentence4: Okay I booked a table for 4 at 15:00 on Saturday at the Graffiti, an expensive British restaurant in the west area of town. Sentence5: I am interested at eating at an expensive place in the west part of town. Sentence6: No that will be all. Thank you so much for all of your help! Sentence7: Excellent. Have a good rest of your day! Sentence8: No I don't have a preference. I want to book for four people at 15:00 on Saturday. Question: Who has spoken the sentence 5? (A) User (B) System
[EX A]: Answer: (B) System

[EX Q]: Sentence1: There is one concert hall in town, The Man on the Moon, located at 2 norfolk street in the centre of town. Do you need more information? Sentence2: Can you make a recommendation and please provide the entrance fee, phone number, and postcode. Sentence3: Can you help me find a concert hall? Sentence4: Cafe Jello Gallery Phone is o12233289438 and is on 13 Madalene treet Sentence5: Yes, I would consider a museum. Sentence6: great, there are 7 museums in the west. Sentence7: I need a concerthall on the west area of town. Sentence8: I am sorry I have only one listing for the city center. Would you consider other attractions? Question: Who has spoken the sentence 2? (A) User (B) System
[EX A]: Answer: (A) User

[EX Q]: Sentence1: It's located on Storey's Way. Do you need any more info on it? Sentence2: Nope, just tell me the area where your favorite is located, and I'll check it out! Sentence3: That sounds perfect. Thanks so much! Sentence4: I'd be happy to. Any preference on location? Sentence5: Hi I am looking to go see a college while in Cambridge. Can you tell me about any of them? Sentence6: No, I am familiar with the area. Thanks for your help. Bye. Sentence7: How about Churchill College? It's in the West. Sentence8: Okay, enjoy your visit! Bye. Question: Who has spoken the sentence 5? (A) User (B) System
[EX A]:
Answer: (B) System