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 recommend a moderately priced restaurant in the South part of town? Sentence2: could i have the address and phone number please? Sentence3: sure, pizza hut cherry hinton is located at G4 cambridge leisure park clifton way cherry hinton and the phone number is 01223 413000. Is there anything else I can help you with? Sentence4: Would you prefer Italian or Modern european food? Sentence5: I don't care. Either one is fine. Sentence6: No, that is all I needed. Thank you. Bye bye. Sentence7: How about Pizza Hut Cherry Hinton. It serves Italian food, is in the moderate price range, and in the south part of town. Sentence8: Goodbye. Question: Who has spoken the sentence 5? (A) User (B) System
[EX A]: Answer: (B) System

[EX Q]: Sentence1: I'd like to dine in the center of town, please. Sentence2: Could you give me the address and phone number for the Slug and Lettuce please. Sentence3: I'm looking for a place to dine that serves gastropub food. I want it to be expensive. Sentence4: You're quite welcome! Thanks for contacting the Cambridge TownInfo Centre and have a great day! Sentence5: The slug and lettuce is located at 34 - 35 Green Street, postcode cb23ju. I'm sorry our system does not list their phone number. Is there anything else? Sentence6: I have two in the centre, the Backstreet bistro and The Slug and Lettuce. Would you like for me to make you a reservation? Sentence7: I wish you could provide their phone number. But other than that you've given me everything I need to know. Thank you goodbye. Sentence8: We have 3 options in Cambridge for expensive gastropub food. Would you prefer a place in the centre or in the east? Question: Who has spoken the sentence 3? (A) User (B) System
[EX A]: Answer: (B) System

[EX Q]: Sentence1: sure, what kind of information are you looking for? Sentence2: I have two hotels located in the west. One is cheap and one is expensive. One hotel is located in the centre and is expensive. Any preference? Sentence3: That is all I need, thank you. Good bye. Sentence4: Yes, could you give me information on the cambridge corn exchange? Sentence5: I don't have a preference. But it does need to have 4 stars and include free parking. Sentence6: Can you tell me the area the cheap one is in and give me it's phone number? Sentence7: I wanted help with finding a hotel in Cambridge today. Sentence8: The cheap hotel is in the west. The phone number is 01954714600. Can I help you with something else? Sentence9: Sure, are you looking to stay on a certain part of town? Sentence10: I need the postcode please. Sentence11: here you go cb236bw Sentence12: Have a great day, please let us know if you need any further assistance. Question: Who has spoken the sentence 4? (A) User (B) System
[EX A]:
Answer: (A) User