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

[Q]: Sentence1: You are very welcome. Goodbye. Sentence2: I am looking for an expensive restaurant in the east part of town. Sentence3: Is there anything else? Sentence4: What is the phone number for Yu Garden? Sentence5: yu garden is on the east side, would you like the phone number? Sentence6: The phone number for Yu Garden is 01223 248882. May I help you with anything else? Sentence7: No, I think that's it. Thank you for your help. Sentence8: I have found several. Would you like British, Indian, gastropub, or Chinese? Sentence9: There are no other types of expensive restaurants in the east, would you like to try another area? Sentence10: Is there another chinese restaurant in the east? Sentence11: Yu Garden is the only Chinese restaurant on the east side of town in the expensive price range. Sentence12: No, that's okay. What Chinese restaurants are there on the east side? Question: Who has spoken the sentence 11? (A) User (B) System
[A]: Answer: (B) System

[Q]: Sentence1: Yes, please. Could you book that for five people as well? Sentence2: The Gonville Hotel is rated 3 stars. There is free internet and parking. It is located at Gonville Place and their phone number is 01223366611. Sentence3: Booking was successful. Reference number is : 5C9C9Y4I . now i can help you book a train Sentence4: Thank you. That is all I need today. Sentence5: I have train TR8860 and leaves at 5:50 and arrives at 6:07. Would you like reservations? Sentence6: My companion and I will arrive on Monday, staying for 5 nights, could you provide me with the reference number? We will need to book a train as well. Sentence7: I would like some information on the gonville hotel Sentence8: Excellent. Could you book it for myself and my partner? Sentence9: Booking was successful, the total fee is 17.6 GBP payable at the station .Reference number is : THCMI67T . Sentence10: enjoy your time with us in Cambridge, enjoy! Sentence11: Sure. Can you confirm when you will be arriving and for how many nights you will be staying? Sentence12: uh why yes you are very perceptive. depart cambridge arrive by 9:45 leaves on sat going to ely Question: Who has spoken the sentence 7? (A) User (B) System
[A]: Answer: (B) System

[Q]: Sentence1: I'm sorry, I have not found anything for that time yet. Can you choose another day or time please? Are you sure you don't have a preference for food type? Sentence2: Thank you for your help. This is all I needed. Sentence3: You're welcome. Please come again if you need more help. Sentence4: Expensive restaurant in the centre, please. Sentence5: I have over 100 restaurants to choose from, would you mind narrowing down your search for me with perhaps a food type or price range? Sentence6: I could really use something to eat. Sentence7: I'm not sure. Just something expensive. We are celebrating. Sentence8: Which restuarant do you want to book at? Sentence9: Not really. Which is your favorite? I'll book that for 13:00 Thursday. There will be 6 of us. Sentence10: Any particular type of food you're hankering for? Sentence11: I booked you at Curry Queen. Your table will be reserved for 15 minutes. Reference number is C06RJUNL . Sentence12: Let's try to book it for 12:00 then for 6 people on Thursday. I'll also need a reference number. Question: Who has spoken the sentence 3? (A) User (B) System
[A]:
Answer: (B) System