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 can book the curry garden for you. Sentence2: Could you please just give me the postcode and phone number for the Golden curry? Sentence3: I'm still not finding anything. What part of town would you like to look in? Sentence4: There are two hotels I can find, one called the Gonville Hotel which is in the centre. The telephone is 01223366611 and the postcode is CB11LY. Sentence5: I would like to go from the hotel to the restaurant no later than 08:00 Sentence6: I've got a Red Audi, contact number 07611734774 leaving at 08:00. Sentence7: Sure, where will you be traveling to and from? Is there a particular time you'd like to leave or arrive by? Sentence8: Yes, I'd like to eat in the centre if possible. Sentence9: Great! Have a nice trip! Sentence10: I'd like it to be 3 stars and in the same price range as the restaurant. Sentence11: There are 2 curry garden and the golden curry. would you like to book either one? Sentence12: I'm sorry, there are no hotels that meet your needs. Do you have any other criteria? Sentence13: Thanks. Can you help me find a hotel as well? I don't need internet, but I do need free parking. Sentence14: can i get a contact number and car type please? Sentence15: I'm looking for an expensive Indian restaurant. Can you find me one? Sentence16: I would prefer something in the Cambridge area or close to it. Sentence17: That's ok, I just need the postcode and phone number. Sentence18: Sure the phone number is 01223329432 and the postal code is cb12az Sentence19: Thank you, that's everything that I need. Sentence20: There are several what area would you like to eat at? Question: Who has spoken the sentence 12? (A) User (B) System
Output: 


Answer: (A) User