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

Q: Sentence1: Booking was unsuccessful. Do you have a different time preference? Sentence2: Is it in the expensive price range? Sentence3: Yes book a table, thank you. Sentence4: I was happy to help, enjoy your meal. Sentence5: Sure, try booking that one for the same people, date, and time, please. Sentence6: Can you please give me a day and time that you would like to book a table for? Sentence7: No, that's all I need. Thank you for your assistance! Sentence8: I am looking for Korean food, in the Centre of town. Sentence9: No. How about finding another restaurant in the same area and price range. Sentence10: I've booked your table for 7 people on Monday at 13:45 at Kymmoy. Your reference number is 1MS5BUU6 . Is there anything else I can help you with today? Sentence11: There is one Korean restaurant in the centre, Little Seoul. Would you like the address and phone number? Sentence12: How about Kymmoy? It's an Asian restaurant in Expensive price range, located in Centre area. Sentence13: Yes, it is expensive. Are you interested in booking a table there? Sentence14: 13:45 on monday and a table for 7 please. I will need a reference number too. Question: Who has spoken the sentence 4? (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: No, that is it. Thank you. Sentence2: What is the price range for the hotel? Sentence3: I am looking for a north indian food restaurant in the town centre. Sentence4: Unfortunately there are no expensive North Indian restaurants. Sentence5: Finches Bed and Breakfast is a cheap 4-star guesthouse on the west side. Its postcode is cb30nd. Can I help you with anything else today? Sentence6: I'm sorry, there are no North Indian restaurants in the centre area. Would you like to check a different area? Sentence7: Have we fulfilled all of your requests today? Sentence8: Thank you. Can you give me a reference number? Also, I need to book a 4 star guesthouse. Sentence9: How does the Curry Garden sound? Sentence10: Your reference number is FNEQ6E1A . And alright, any other preferences regarding the guesthouse? Sentence11: I need it to include free wifi. Sentence12: There are 18 guesthouses matching your criteria. What area and price range would you prefer? Sentence13: That sounds good. Please book for 2 people at 11:45 on Saturday. Sentence14: Thanks, booking has been completed. Sentence15: You're very welcome, enjoy your visit! Sentence16: Finches Bed and Breakfast is a cheap guesthouse. Do you need anything more? Sentence17: I trust your opinion, just please let me know the price range and postcode. Sentence18: What about expensive restaurants? Sentence19: What about a restaurant that serves just indian food? Sentence20: No thank you. You have been very helpful. Question: Who has spoken the sentence 4? (A) User (B) System

A:
Answer: (A) User
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