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

[EX Q]: Sentence1: Thank you, can I get a taxi as well? I need to leave the hotel by 16:45 and go the restaurant. Sentence2: They are located Cambridge Leisure Park Clifton Way Cherry Hinton, cb17dy. Phone: 01223412430. Sentence3: Yes of course. It is rated 4 stars, is located in the west and is in the cheap price range. Would you like me to check availability for you? Sentence4: I actually dont need a reservation. just the address, postcode and phone number please. Sentence5: There are five great restaurants that match your criteria. I highly recommend cafe uno located in the centre of town. Sentence6: Hi, do you know of a hotel called finches bed and breakfast? Sentence7: Sure, I'll get right to that. First, can I ask the day you'd like to eat there? Also, what time and how many people? Sentence8: Okay, I've booked you a taxi leaving your hotel at 16:45. Look for a blue toyota, and if you need to contact them their number is 07524587523. Sentence9: The restaurant should serve italian food and should be in the expensive price range. The restaurant should be in the south Sentence10: My favorite restaurant would fit your criteria. It's called Frankie and Bennys. Would you like me to make you reservations? Sentence11: Sure. I'd need a room for 8 people, 5 nights starting on thursday. Sentence12: You're welcome! Have a wonderful day. Sentence13: Excellent, that's all the information I need, thank you for your help! Sentence14: Yes can you please make me a reservation? Sentence15: Booking was successful. Reference number is : 6AYRAXKH . Do you need anything else? Sentence16: Yes I am looking for a restaurant in the expensive price range that serves Italian food. Question: Who has spoken the sentence 5? (A) User (B) System
[EX A]: Answer: (B) System

[EX Q]: Sentence1: What is the address? Sentence2: Indian, Italian and British restaurants are available in the west part of town for a moderate price. Would you like more information on any or all of these? Sentence3: No, the west part of town Sentence4: I don't have a preference as long as it's moderately priced and in the west part of town. Sentence5: Meghna is an Indian restaurant, it is in the moderate price range, and it is in the west part of town. The address is 205 Victoria Road Chesterton. Sentence6: May I suggest curry prince, a moderately priced indian restaurant in the east? Sentence7: I would like a moderately priced restaurant in the east part of town Sentence8: Did you want the address for an Indian, Italian, or British restaurant? Question: Who has spoken the sentence 7? (A) User (B) System
[EX A]: Answer: (B) System

[EX Q]: Sentence1: Yes I will also need to book a taxi from Rosa's for 04:45. Sentence2: Rosa's Bed and Breakfast is a guesthouse. It has internet and parking, as requested, and the postcode is cb22ha. Shall I book a room for you at Rosa's? Sentence3: Just to confirm, you want a taxi from Rosa's to Christ's College with a departure time of 04:45, correct? Sentence4: Thank you! I would like it to have at least 4 stars. Sentence5: You know what, come to think of it I think I would prefer to stay on the south side of town. Can you check for a 4-star hotel there? Sentence6: I have no preference for the area, would you recommend one for me? I would also need the postcode and entrance fee please. Sentence7: Doesn't matter. Do both include wifi? Sentence8: Thank you. I think that's all I need today. Bye. Sentence9: Could you get me the postcode for Rosa's B&B? And is that a hotel or guesthouse? Sentence10: Christ's college is located in the centre of town at listed postcode cb23bu. The entrance fee is free. Would you like more information? Sentence11: I have two, would you prefer a guesthouse or hotel? Sentence12: no nothing specific, but the cheaper the better Sentence13: There are 18 colleges that you can visit. Is there a particular part of town that you are interested in? Sentence14: No thanks, but I do need a place to stay. Could you find me something with free parking? Sentence15: There are two 4-star hotels: Aylesbray Lodge Guest House and Rosa's Bed and Breakfast. Sentence16: Is there an area of town you'd prefer? Sentence17: I am wanting to visit a college while I am traveling in town. Do you have any listings? Sentence18: Okay you have a booked car, a blue tesla, contact number 07113187062. Sentence19: You are most welcome. Have a good day. Sentence20: There are five places with parking, is there a specific price range you would like to look for? Sentence21: Any other requests? Sentence22: That is correct. Sentence23: I would prefer to stay in the West side of town. Sentence24: Yes both have wifi Question: Who has spoken the sentence 11? (A) User (B) System
[EX A]:
Answer: (B) System