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

Positive Example 1 -
Input: Sentence1:i need a place to dine in the center thats expensive Sentence2: I have several options for you; do you prefer African, Asian, or British food? Sentence3: Any sort of food would be fine, as long as it is a bit expensive. Could I get the phone number for your recommendation?Question: Who has spoken the sentence 2? (A) User (B) System
Output: Answer: (A) User

Positive Example 2 -
Input: Sentence1: Guten Tag, I am staying overnight in Cambridge and need a place to sleep. I need free parking and internet. Sentence2: I have 4 different options for you. I have two cheaper guesthouses and two expensive hotels. Do you have a preference? Sentence3: No, but I'd really like to be on the south end of the city. Do any of those fit the bill? Sentence4: Sure. Does price matter? We can narrow it down and find exactly what you need. Question: Who has spoken the sentence 4? (A) User (B) System
Output: Answer: (B) System

Negative Example 1 -
Input: Sentence1: I am looking for a hotel named alyesbray lodge guest house. Sentence2: i have their info, what would you like to know? Sentence3: I would like to book a reservation for it. Can you help me with that? Sentence4: I sure can. First, I will need to know when you want your stay to begin and how many days you'll be staying. Also, how many people will be staying? Question: Who has spoken the sentence 1? (A) User (B) System
Output: Answer: (A) User

Negative Example 2 -
Input: Sentence1: Hi there! Can you give me some info on Cityroomz?. Sentence2: Cityroomz is located at Sleeperz Hotel, Station Road in the Centre area. It is a moderatley priced hotel with a 0 star rating. Would you like to book a room? Sentence3: Yes please. I need it for 7 people for 3 nights starting on tuesday. Sentence4: How many days would you like to book it for? Question: Who has spoken the sentence 4? (A) User (B) System
Output: Answer: (A) User

Now complete the following example -
Input: Sentence1: Hello, what places to go could you recommend in the Centre of town? Sentence2: I am interested in the cinema. What are my choices? I'll need phone number and entrance fee information. Sentence3: Were you interested in any type of place like a museum or architecture? Sentence4: Okay, Vue Cinema is in the centre and their phone number is 08712240240. I do not have the entrance fee available. Sentence5: Sounds perfect. Can you please book a table for 8 on Sunday at 16:15? Sentence6: Oak Bistro is a British restaurant in the Centre of town. It's not too expensive, and is fairly close to the Cinema. Would you like me to book a table? Sentence7: Thank you. Can you find out some information on the oak bistro for me as well? Sentence8: Thank you for using this service goodbye Sentence9: I have booked your table of 8 for Sunday at 16:15. Your Reference number is : QA3C5JW0 . Can I assist you with anything else? Sentence10: No thank you that will be all Question: Who has spoken the sentence 8? (A) User (B) System
Output: 


Answer: (A) User