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

Sentence1: You are welcome. Have a great day. Sentence2: Thank you, that will be all. Sentence3: leave after 22:30 and dont care when i arrive Sentence4: Hello. Can you book a taxi for me? I need to travel from the Grafton Hotel Restaurant to Home From Home. Sentence5: No problem at all. What time do you want to leave and arrive by, respectively? Sentence6: Alright, I've got a white skoda coming to pick you up at the Grafton Hotel Restaurant at 22:45, your contact number for them is 07935014262. Question: Who has spoken the sentence 1? (A) User (B) System
Answer: (B) System

Sentence1: No that's all. Thanks. Bye! Sentence2: Yes, that's right. Which of the 12 options would you recommend? Sentence3: Yes, would you try 2 nights instead, please? Sentence4: That's great. Please make a reservation for 1 on Monday. I'd like to stay 3 nights. Sentence5: Your booking was unsuccessful. Would you like another day or a shorter stay. Sentence6: Are they expensive? I would like something nice. And do they have free parking? Sentence7: Please check for something expensive first. If you don't see one, then we can come back to that. Sentence8: Booking was successful. Reference number is : JAKCI7JO . Is there anything else we can help you with today? Sentence9: How about Archway House? It's at 52 Gilbert Road cb43pe, and the phone number is 01223575314. Would that work for you? Sentence10: Yeah, that's fine. Oh, and I need free parking! Sentence11: There is the Acorn Guesthouse that is located in the north side of town. Would you like me to make a booking? Sentence12: I hope you have a great rest of the day. Sentence13: Can you tell me about a nice guest house in your city? I don't care how much it costs. Sentence14: They're a moderate guesthouse with free wifi and parking. Would you like to book a room? Sentence15: So to clarify, you need a guesthouse with free parking, and a moderate price range is acceptable? If so, I have 12 different options for you. Sentence16: It looks like all of the places in the expensive price range are hotels rather than guesthouses. Would you like to consider a different price range? Question: Who has spoken the sentence 11? (A) User (B) System
Answer: (B) System

Sentence1: They serve European food then? Sentence2: It's an expensive european place in the centre at St. Michael's Church Trinity Street City Centre cb21su with phone 01223309147. Would you like to book a table? Sentence3: Yes michaelhouse cafe serves european food. Would you like any other information about this resturant? Sentence4: I managed to book you for a taxi at that time. It will be a white Audi and the contact number is 07947363494. Is there anything else? Sentence5: I actually have 4 different ones. If I may suggest one, the Mumford Theatre is new and really fun. Sentence6: Hi, I need help planning a trip to Cambridge. I'd like to go to the theatre while I'm in town, and I'll be in the city centre. Is there one there? Sentence7: Thanks. I also need information about a specific restaurant called michaelhouse cafe. What can you tell me about it? Sentence8: That sounds great, what's their phone number? Sentence9: That will be all, thank you and goodbye. Sentence10: Their number is 08451962320 Sentence11: Thank you for using our service. Have a great day. Goodbye. Sentence12: No, that's perfect, but I will need a taxi to go from Mumford Theatre, leaving by 12:00, to go to St. Michael's Church Trinity Street City. Question: Who has spoken the sentence 4? (A) User (B) System

Answer: (A) User