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: Have a great time. Sentence2: University Arms Hotel sounds just great. Please get me a booking for 8 people staying for 4 nights starting from Friday. Sentence3: Do they have free wifi and a 4 star rating? Sentence4: I was able to book your rooms at University Arms Hotel for Friday. Your reference number is 8IITDH5T . Is there anything else I can do for you? Sentence5: Okay, Downing College is on regent street. The post code is CB21dq. It's free. Sentence6: Can you help me find a guesthouse? Something nice. And somewhere upscale on the price, too. My parents are paying for the whole trip and they're loaded. Sentence7: How about the express by holiday inn cambridge in the east side of town? Sentence8: No, please pick one. Provide me with the address, post code and entrance fee. Sentence9: There are a few colleges in the centre. Do you know the name of the college or do you prefer free entrance fees? Sentence10: In the centre please. Can I get their address, phone number, and entrance fee? Sentence11: Does it have free wifi? Sentence12: Sure we have 18, do you have an area preference? Sentence13: I am going off to college soon and want to visit a campus. Can you help me find one? Sentence14: Unfortunately, the colleges in town do not offer free wifi. They do offer free entrance though. Sentence15: They have free WiFi but their rating is 2. I think University Arms hotel will suit you better in that case. Sentence16: No, that's it; thank you for your help. Question: Who has spoken the sentence 13? (A) User (B) System
Output: 


Answer: (B) System