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

[Q]: Sentence1: i am sorry. i have double checked and still do not find anything matching your criteria. would you like a different star rating? Sentence2: I can help with that. What kind of price range do you have in mind? Sentence3: there are a variety of good things in the north it depends on what you want i will find whatever you request Sentence4: There doesn't appear to be a 4 star hotel with wifi in the north. Can I interest you in a lower star rating? Sentence5: i need a hotel with wifi in the north part of town Sentence6: Perhaps there is a guestroom? Sentence7: No but would you like to try another location ? Sentence8: No, the hotel needs to have a 4 star rating. Can you please check your system again? Thanks Sentence9: I am open as far as price range, but I would love a 4 star place. Sentence10: No I need the north. Is there anything else available in the north? Question: Who has spoken the sentence 3? (A) User (B) System
[A]: Answer: (B) System


[Q]: Sentence1: Okay, great. Have a safe trip. Goodbye. Sentence2: Yes please. I need it booked for 1 person for 2 nights starting tuesday. Can i get a reference number? Sentence3: I have found the allenbell guesthouse. It meets all of your criteria, is in the cheap price range, and provides internet and parking. Would you like me to book it? Sentence4: Thank you, that is it for today. Goodbye. Sentence5: The reference number for your booking is KEBFTR7I . Can I do anything else for you? Sentence6: I need a place with rated 4 stars in the east. Can you help me find one that like a guesthouse? Question: Who has spoken the sentence 1? (A) User (B) System
[A]: Answer: (B) System


[Q]: Sentence1: Thank you good bye. Sentence2: There are no results for moderately priced Cuban food restaurants. Is there anything else I can help you with? Sentence3: You're welcome. Goodbye. Sentence4: Can I get the address and postcode, please? Sentence5: There is an international restaurant in the moderate range called The Varsity Restaurant in the centre area of town. Sentence6: The address of The Varsity Restaurant is 35 Saint Andrews Street City Centre and the postcode is C.B 2, 3 A.R. Sentence7: Are there any international restaurants in the moderate range? Sentence8: There are several moderately priced restaurants. Do you have a preference to the area of town? Sentence9: looking for a restaurant in the moderately priced range Sentence10: I don't care about the area of town, but I'd like cuban food. Question: Who has spoken the sentence 1? (A) User (B) System
[A]:
Answer: (B) System