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

Ex Input:
Sentence1: Thanh binh is a nice restaurant that serves Vietnamese food and is in the cheap price range. Sentence2: That sounds great! May I have their phone number please? Sentence3: Thank you for using the Cambridge restaurant system, please call again. Sentence4: Okay, thank you for your help! Sentence5: How about vietnamese food, please? Sentence6: I am looking for a restaurant that serves Malaysian food and is in the cheap price range. Sentence7: thanh binh's phone number is 01223 362456 Sentence8: No matches found for cheap Malaysian food. Would you like something else? Question: Who has spoken the sentence 1? (A) User (B) System

Ex Output:
Answer: (B) System


Ex Input:
Sentence1: i also want a taxi to commute between the two places Sentence2: That's it for now. Thank you for you patient help. Goodbye. Sentence3: book a hotel for 7 people and 2 nights starting from wednesday Sentence4: I have 24 options available. Do you have a specific area in mind? Sentence5: It will be picking me up from the hotel. I'll need the contact number and car type, please? Sentence6: First let's pick one of the 14 guesthouses and then I'll book your room! Sentence7: Absolutely! Your Booking was successful. Reference number is : 7ZCFV2O4 . Is there anything else you need? Sentence8: I need a guesthouse to stay while I'm in town. I don't care if it has free parking or not. Do you have something I could get? Sentence9: We have five parks available. Do you have an area that you would prefer? Sentence10: Yes, I would recommend acorn guest house. Sentence11: I should be able to help you with that. Are you traveling to the Botanic Gardens or from? And what time do you want the taxi for? Sentence12: I'd like someplace in the center, please. Sentence13: There are 14 guest house with internet and moderate price what area would you like Sentence14: Sounds good. There are a lot to chose from, is there one that you specifically recommend? Sentence15: And where would you like the taxi to pick you up? Sentence16: That sounds fine can you book for seven people for two nights starting Wednesday? I'm also looking for a park to visit. Sentence17: You are booked for a white audi with the contact number 07387814664. May I help with anything else, like a restaurant? Sentence18: Yeah, any time I was happy to help. Sentence19: I'm also looking for a park to go to while I'm in town. Sentence20: i want to leave the hotel by 01:15 Sentence21: The Cambridge University Botanic Gardens is located in the centre. It's on Bateman Street. The entrance fee is 4 pounds. Can I help you with something else? Sentence22: No specific area but i do need wifi and a moderate priced guesthouse please. Question: Who has spoken the sentence 4? (A) User (B) System

Ex Output:
Answer: (A) User


Ex Input:
Sentence1: Booking was successful! Your reference number is ZXKNH4XD . Is there anything else I can do for you? Sentence2: Your taxi is booked from cityroomz to jinling noodle bar for arrival at your 16:00 reservation. Your taxi is a red Honda. The contact number is 07715873440. Anything else? Sentence3: Great, we need that booked as well starting monday for 5 nights. Sentence4: Your table for 3 has been reserved on Monday at 16:00 at Jinling Noodle Bar. Your reference number is 3UL0PL4Q . Can I help with anything else today? Sentence5: How about Chinese food? Sentence6: I have one listing for cityroomz in the centre of town. Sentence7: Thank you for contacting us and have a nice day. Sentence8: I also need a taxi. Sentence9: No you have been great! Thank you for all your help. Sentence10: I've got many here that match that description. Would you like a specific food type? Maybe British food? Sentence11: Great. i also need to find a place to stay in the same price range as the restaurant and I am looking for a hotel. Sentence12: Yes, please, so moderately priced hotel in the centre. Sentence13: Will there be three people for the hotel reservation as well? Sentence14: That sounds great! Can you see if there's a table for 3 available at 16:00 on Monday? Sentence15: jinling noodle bar is a chinese restaurant in the centre, 11 Peas Hill City Centre Sentence16: Yes, I need a booking for 3 people. Sentence17: Would you also like that in the same area as the restaurant? Sentence18: I'm looking for a moderate priced place to dine in the centre of town Question: Who has spoken the sentence 1? (A) User (B) System

Ex Output:

Answer: (B) System