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

Sentence1: Yes. I will be staying 5 nights starting Friday. Sentence2: Im also looking for the cow pizza kitchen and bar. Whats the address for it? Sentence3: its address is Corn Exchange Street. what else can i do for you? Sentence4: Oh, expensive please. I do hope it is a guesthouse? Sentence5: You have helped me with everything I need. Thank you. Sentence6: Anytime. Enjoy your visit. Sentence7: I'll be staying for 5 nights. Sentence8: Unfortunately they are both hotels. Sentence9: Booking was successful. Reference number is : GQPN80PK . Is there anything else I can assist you with today? Sentence10: Okay I've got three options here. Would you like a cheap or an expensive price range? Sentence11: Can you help me locate a hotel to stay at that has free parking and a 4 star rating? Sentence12: Oh. I would really prefer a guesthouse. How about the moderate price range? Sentence13: Okay, I recommend The Acorn Guesthouse. Would you like me to book there? Sentence14: NO problem. How long are you staying? Sentence15: The location isn't important. I need to book it for Friday, please. Sentence16: They are moderate, it is a gastropub, in case you need them, the postal is cb23qf and the phone number is 01223308871, can I assist with anything else? Sentence17: I have 9 guesthouses in the moderate price range, do you have a location preference? Sentence18: I need it's price range please Question: Who has spoken the sentence 1? (A) User (B) System
Answer: (B) System

Sentence1: Kymmoy is in the centre of town and the phone number is 01223 311911. May I help you with anything else? Sentence2: Thank you, I have all I need. Goodbye! Sentence3: What is the phone number and area? Sentence4: Is there any expensive restaurants in town serving Australian food? Sentence5: You're welcome. Thanks for your call! Goodbye. Sentence6: Kymmoy is an expensive asian oriental restraunt in town. Sentence7: I'm sorry, there are no Australian restaurants. Would you like another type of food? Sentence8: How about asian oriental food? Question: Who has spoken the sentence 2? (A) User (B) System
Answer: (A) User

Sentence1: I need one that includes free wifi and is in the centre. Sentence2: Yes can you book it for 3 people Thursday at 20:00? Sentence3: Why, yes it is in the center. I can book you a reservation if you like. Sentence4: There is one option. It is cityroomz, a 0 star hotel. Sentence5: I definitely can. For how many people and how many nights? Sentence6: Can you book it for me? Sentence7: The postcode is cb12tz. Is there anything else I can do for you today? Sentence8: Can you book a taxi to pick me up from cityroomz and take me to Anatolia, arriving by 20:00? Give me car type and contact info Sentence9: Okay. Well, if you should need further assistance, don't hesitate to contact us. Thank you and goodbye. Sentence10: No thank you, that will be all for now. Sentence11: is it located in the centre? Sentence12: I will also need a taxi to pick me up at the hotel and take me to the restaurant. Sentence13: And what is the postcode? Sentence14: I can help you with that. I was able to get you a table for 3 at 20:00 on Thursday. The restaurant will hold your table for 15 minutes. Sentence15: Actually I just need to know how many stars they hotel has and the postcode. Sentence16: Sure, there are two. I recommend the Anatolia. Would you like a reservation? Sentence17: Thanks. O'm also looking for a place to stay, moderately priced. Sentence18: I'm looking for a moderately priced Turkish restaurant. Sentence19: Sure can, the booking has been completed! The car type is a yellow skoda and the contact number is 07710275649. Can I help with anything else? Sentence20: Again that has been booked your car type is a yellow skoda and the contact number is 07710275649. Can I help you with anything else? Sentence21: It is a 0 star hotel. Sentence22: There are three to choose from; The Ashley Hotel, Cityroomz, and the Lovell Lodge. Which would you like? Question: Who has spoken the sentence 1? (A) User (B) System

Answer: (B) System