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

[EX Q]: Sentence1: You're very welcome! Is there anything else that I can help you with today? Sentence2: That is all I will need. Thank you for your help! Sentence3: Please book for 4 people at 17:00 on Sunday Sentence4: Thank you for all your help. Sentence5: I need a restaurant. The restaurant should serve indian food and should be in the expensive price range. Sentence6: I will be departing from my house. Sentence7: Pipasha Restaurant fits all of your criteria. Would you like to book a stay? Sentence8: Yes, I'd like a taxi to take me to Pipasha Restaurant and then to Cambridge Punter. I'd like to arrive at Pipasha Restaurant by 17:00. Sentence9: There are 14 expensive indian restaurants in the city. Do you have a preference of location? Sentence10: I am also interested in attractions in the centre. Specifically, I am interested in multiple sports facilities Sentence11: Your table for 4 has been booked. The table will be reserved for 15 minutes. Your reference number is 8OZ8ZF5G . Do you need anything else? Sentence12: The Cambridge Punter looks like a good choice. Want more information? Sentence13: Actually I'll be at the Cambridge Punter, pick me up there. Sentence14: Yes.East-Side London. Sentence15: How about an attraction that has to do with boats? Sentence16: The phone number to the cambridge punter is 07807718591. Do you require assistance with anything else. Sentence17: I have none available in the centre. Would you like a different area or attraction? Sentence18: You are welcome. Please call us back if we can help you any further. Sentence19: What is the address of your house so I can book the taxi? Sentence20: I just need to know where you will be departing from at first to the restaurant. Sentence21: No problem. Your taxi is booked. The car is a red tesla and the contact number is 07610839736. Anything else I can help you with? Sentence22: Yes, can I get the phone number? Question: Who has spoken the sentence 17? (A) User (B) System
[EX A]: Answer: (B) System

[EX Q]: Sentence1: Would you like to book a room at the acorn guest house? It is in the moderate price range like the Hamilton Lodge. Sentence2: Nope. I think that is all I need. Thanks for your help! Sentence3: Yes that will be fine. Sentence4: Your booking was successful. Your reference number is 1WRSIG9U . Is there anything else I can help you with? Sentence5: Happy to help. Have a great day! Good-Bye! Sentence6: I am sorry the booking was unsuccessful,can I help you find another place in the same area? Sentence7: Yes please. I'd like a room for 5 people on Monday for 5 nights. Sentence8: Yes, this guesthouse is open. Do you need help with booking? Sentence9: How about another hotel in the same price range? Sentence10: Howdy! Is the Hamilton Lodge still open? Question: Who has spoken the sentence 3? (A) User (B) System
[EX A]: Answer: (B) System

[EX Q]: Sentence1: What is their postcode? Sentence2: Hello, i'm looking for a restaurant called river bar steakhouse and grill. Sentence3: Can you tell me more about The Tenpin? And can you give me a phone number and postcode? Sentence4: Their post code is cb58aq. Would you like me to make a reservation for you? Sentence5: Thank you for using our services. Have a great day. Sentence6: I can do that for you. Do you know when you'd like to leave or arrive so I can schedule the car? Sentence7: Not right now. Is there anywhere to go for entertainment in the south? Sentence8: The Tenpin can be reached at 08715501010. Their postcode is cb17dy. Is there anything else you needed? Sentence9: This is a modern european, cheap restaurant. It's in the centre, located at Quayside Off Bridge Street. Sentence10: Thanks. I will also need a taxi between The Tenpin and river bar steakhouse and grill. Sentence11: I would like to leave our attraction by 2:30 and head to the restaurant. Sentence12: There's the tenpin entertainment attraction in the south. Sentence13: Ok, you are all set look for a Yellow Lexus, if you need to contact the taxi, they can be reached at 07983066383 Sentence14: Great, thank you so much! That's all I will need for today! Question: Who has spoken the sentence 8? (A) User (B) System
[EX A]:
Answer: (A) User