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

Q: Sentence1: It's cb12bd. Anything else I can get you? Sentence2: How about something in the south and moderate price range? Sentence3: I'll take Rice House, what's the postcode? Sentence4: There are 3 cheap chinese restaurants in the centre of town: Charlie Chan, Rice House, or Golden House. Would you like me to book any of these? Sentence5: Sure let's try chinese food. Sentence6: I was not able to find any restaurants matching your requirements. Sentence7: I'm still not finding anything. Would you like me to search a different part of town or a different food type? Sentence8: You're welcome. Have a great day! Sentence9: That's all. Thank you. Sentence10: I am looking for a cheap gastropub restaurant in the centre of town Question: Who has spoken the sentence 6? (A) User (B) System

A: Answer: (A) User
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Q: Sentence1: How about Italian food instead and could I have the phone number if you find a restaurant Sentence2: There are no matching restaurants. Would you like me to perform another search? Sentence3: Prezzo is a moderately priced Italian restaurant in the west side of town. The phone number is 01799 521260. Sentence4: Thank you, goodbye. Sentence5: West side of town. Sentence6: Thank you good bye Sentence7: I want a restaurant with corsica food please. Sentence8: What is the area you would like? Question: Who has spoken the sentence 4? (A) User (B) System

A: Answer: (A) User
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Q: Sentence1: We have 2,828 entries for a train. Could you narrow it down to what you need? Sentence2: I'm sorry but I don't have any hotels that match your criteria in that area, would you like to try another part of town? Sentence3: I would like to stay in the south please. Sentence4: Can you double check for a 4 star, south area hotel with free wifi and parking please? Sentence5: I have 2 guesthouses matching your requirements, one cheap and one moderate. I recommend the moderately-priced Aylesbray Lodge. Sentence6: I'm looking for a place to stay with free wifi. Find me a hotel like that with a star of 4. Sentence7: Okay. Would you like to stay on the west side of town, or the centre? Sentence8: Okay, thanks. I'm also looking for a train for Friday. Question: Who has spoken the sentence 4? (A) User (B) System

A:
Answer: (A) User
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