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: I am wanting a recommendation so it can be any type of food, but I would like something cheap and in the centre of town. Sentence2: What type of attraction would you like? Sentence3: There is no entrance fee. Sentence4: Thank you for calling and have a wonderful day. Goodbye. Sentence5: Thank you for all your help. That's all I need for now. Sentence6: Yes can you please and send me the reference number? Sentence7: Old Schools is an architecture tour. Sentence8: I would highly recommend the Charlie Chan for you. Should I make a booking for you? Sentence9: That sounds interesting. What is the entrance fee? Sentence10: Sorry, I am looking for a fine attraction which is also in the center of town. Sentence11: I'm looking for a restaurant, can you help? Sentence12: I need to know where a fin place ot go is, I dont care what type, just in the cetre area near where I am eating. Sentence13: Your reference number is OWA5YKJI . Do you need help with anything else? Sentence14: No problem. I would like it booked for two people at 20:00 on Saturday. Sentence15: I am sorry what is a fin? Can you please rephrase your question? Sentence16: old schools is nice and they are located in the centre Sentence17: What kind of attraction is that? Sentence18: Suggest something to me, near the restaurant. Sentence19: Sure. Can you tell me how many people will be there and when you would like the reservation for? Sentence20: Sure, do you know what you are looking to eat? Question: Who has spoken the sentence 12? (A) User (B) System
Output: 


Answer: (A) User