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

Sentence1: Okay! What time do you need it for? Sentence2: Can I help you with anything else? Sentence3: That is all I need today thank you. Sentence4: I need to arrive by 04:45 Sentence5: I need a taxi to come to curry garden and take me to nandos. Sentence6: Have a wonderful day! It was a pleasure to serve you. Sentence7: That is all. Good bye. Sentence8: I have booked you a white volvo, contact number is 07985113779. Is there anything else? Question: Who has spoken the sentence 1? (A) User (B) System
Answer: (B) System

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
Answer: (B) System

Sentence1: I'm looking to slum it a little bit, do you have any 0-star places? Sentence2: No, that's all. thank you very much. Have a great day. Bye. Sentence3: My apologies. The guesthouse is the el shaddai and the hotel is the cityroomz. Can I help with anything else? Sentence4: We sure do! There is a guesthouse in the cheap price range as well as a hotel in the moderate price range. Would you like more information on these? Sentence5: The TR2530 leaves at 17:29. Sentence6: It should have wifi please give me the postcode Sentence7: They both have wifi. Postcode for the guesthouse is cb11eg and the postcode for the hotel is cb12tz. Do you need any further information? Sentence8: Hello I need a place to stay in the centre please. Sentence9: I need to leave after 16:00 and go to Bishops Stortford please. Sentence10: Thank you for that, I am also looking for a train as well. It should depart from cambridge on Monday. Sentence11: That sounds perfect, but I just realized you never gave me the names of those two lodging accommodations. Could I have those please? Sentence12: Thank you for using our service. Have a great day. Sentence13: Where would you like to go? Is there a specific time you'd like to leave or arrive? Sentence14: I have 5 establishments in the centre. Did you have preference in price? Question: Who has spoken the sentence 10? (A) User (B) System

Answer: (A) User