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

[Q]: Sentence1: Yes, please. For 5 people at 14:00 on monday. Sentence2: The camboats are located in the east, how's that? Sentence3: I do not have information on the fee. Sentence4: Ok, thank you. I'm also looking for a restaurant called don pasquale pizzeria. Sentence5: Your booking was successful with reference number 1RF57JD7 . Oh, by the way, your table will be reserved for 15 minutes. Enjoy! Sentence6: Have a lovely stay in Cambridge! Sentence7: Thank you for the reference number. Goodbye! Sentence8: That might be good. What is the entrance fee? Sentence9: Don Pasquale is in the centre. Would you like me to make a reservation? Sentence10: I'm looking for some boats in the East, actually. Question: Who has spoken the sentence 7? (A) User (B) System
[A]: Answer: (B) System

[Q]: Sentence1: Where will you be travelling to? Sentence2: Yes but I need that to be booked for 3 people. I would like the reference number please. I also need a place to stay as well. Sentence3: Sure thing, I would suggest this one acorn guest house. Sentence4: I will be traveling to Leicester and would like to arrive before 21:15. Sentence5: I would like a 4-star guesthouse in the north in a moderate price range. Sentence6: Great can you book that for me from Sunday for 2 nights for 4 people. Sentence7: I would like to arrive by 21:15. Sentence8: When could you like to arrive by? Sentence9: Your booking was successful. Your reference number is 7ZJ4CTTG . Will that be all for today? Sentence10: Booking was successful, the total fee is 113.4 GBP payable at the station. Your reference number is ABKFF3SH . What type of place are you looking for? Sentence11: I'm looking for a train that leaves from Cambridge on Tuesday. Sentence12: I have the TR8207 that will arrive by 21:06. Would you like me to book that for you? Question: Who has spoken the sentence 4? (A) User (B) System
[A]: Answer: (A) User

[Q]: Sentence1: sorry what is the area again? Sentence2: I want one in the moderate priced range. What is the price range of Chiquito restaurant? Sentence3: Have a nice day. Sentence4: I need the address and phone number of a restaurant in the south part of town. Sentence5: There are nine restaurants in the south part of town. What kind of food would you like? Sentence6: What is the address for Pizza Hut Cherry Hinton? Sentence7: I'm afraid Chiquito restaurant bar is expensive. Pizza Hut Cherry Hinton is a moderately priced Italian restaurant in the south. Sentence8: I don't care. Sentence9: Thank you, goodbye Sentence10: Can you tell me what kind of food they serve? Sentence11: it is located in the south part of town Sentence12: Chiquito restaurant bar is in the south part of town. It's address is 2G Cambridge Leisure Park Cherry Hinton Road Cherry Hinton, and it's phone number is 01223 400170. Sentence13: Their address is G4 Cambridge Leisure Park Clifton Way Cherry Hinton. Sentence14: Chiquito restaurant bar serves Mexican food. Question: Who has spoken the sentence 5? (A) User (B) System
[A]:
Answer: (B) System