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

Sentence1: 07426688661 is the contact number, I have you in a grey Toyota. Sentence2: Great. Can you tell me where you will be traveling to and from? Sentence3: I need to get there by 11:45. Sentence4: That's perfect, thanks! Sentence5: I need to book a taxi please. Sentence6: You are welcome. Thank you for calling us. Goodbye. Sentence7: Can I help you with anything else? Sentence8: No, that's everything. Goodbye. Sentence9: I want to go from wandlebury country park to huntingdon marriott hotel Sentence10: Okay, I will need some more information from you. What time would you like to leave? Question: Who has spoken the sentence 8? (A) User (B) System
Answer: (A) User

Sentence1: Yes, what type of attraction is Cherry Hinton Water Play? Sentence2: Please book it and send me the confirmation code. Sentence3: Again thank you and have a great day. Sentence4: Thanks I'm also looking for a train that leaves on Thursday. Sentence5: Just one seat. Sentence6: OK, what are your departure and arrival stations, and what time do you want to travel? Sentence7: Before i book it, could you confirm the number of seats you need? Sentence8: You're welcome! Is there anything else I can help you with? Sentence9: It is a park. Sentence10: Excellent, I can't wait to visit it! Thank you. Sentence11: I am looking for information about the the Cherry Hinton Water Play Sentence12: excellent, have a great day! Sentence13: I'd like to go to Cambridge via Broxbourne. I'd like to leave on Thursday and arrive no later than 12:00. Sentence14: That is a free park on the east side of town. They are located at Cherry Hinton Hall on Cherry Hinton Road. Their phone number is 01223446100. Sentence15: I have on that arrives at 11:32. Would you like me to book that for you? Sentence16: Perfect thanks for the help thats everything I need! Sentence17: Well I glad i can help enjoy your stay ! Sentence18: Your booking was successful! The reference number is 698RE4W1 . The total fee of 17.89 is payable at the station. Question: Who has spoken the sentence 17? (A) User (B) System
Answer: (B) System

Sentence1: i also want a taxi Sentence2: at what time should it leave? Sentence3: i want to book a taxi to commute between the two places. Sentence4: Have a good day! Sentence5: I am traveling to Cambridge and looking forward to try local restaurants. Sentence6: That sounds lovely. I would like to book it for Saturday, for 7 people, at 14:15. Sentence7: Can we search for Portuguese instead? Sentence8: I would like a japanese place in the cheap range. Sentence9: Your booking for 7 at 14:15 was successful! The reference number is 38PZHLJO . May we help you with anything else? Sentence10: There's nothing matching that. Do you have any other criteria? Sentence11: Where to and from, and what time will you need the taxi? Sentence12: not now . i am also looking for a place to dine Sentence13: I recommend rosa's bed and breakfast. Could I book a stay for you? Sentence14: Do they have wifi? Sentence15: I have 2 guesthouses that match your criteria, do you have a price preference? Sentence16: I would be happy to help. There are lots of great restaurants in town! Do you what to try a particular type of food? Sentence17: Thank you, that is all I need. Sentence18: The most important thing is that it gets me to the restaurant in time for the reservation. I can leave the hotel whenever necessary. Sentence19: Okay. I've booked for you a yellow skoda. The contact number is 07314173329 Sentence20: There are several restaurants, what type of food would you like? Sentence21: There is one place available called the Nandos! Would you like for me to book a table? Sentence22: Okay, which place do you recommend? Sentence23: yes and they are a number without Sentence24: I still need to discuss restaurants details with a couple people first, can I start by looking for a 4 star place to stay in the south with free parking please? Question: Who has spoken the sentence 4? (A) User (B) System

Answer: (A) User