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: what time do you need to leave or arrive by? Sentence2: i want to leave the attraction by 15:00 Sentence3: That is all, thanks. Sentence4: There are quite a few Indian restaurants in the centre and since money is no object, I recommend the curry garden. Would you like me to book you a reservation there? Sentence5: Hi there. I am looking for some information on places to go in town. Sentence6: Have a nice day. Sentence7: What types of attraction are you interested in? Sentence8: Your taxi reservation on a white Ford is complete. You will be picked up by 15:00 at Corpus Christi and dropped off at Curry Garden. The contact number is 07699910200 Sentence9: Sure. The Curry Garden is located at 106 Regent Street at the City Centre. The postcode is cb21dp. Sentence10: You should go to Corpus Christi, the phone number is 01223338000 with a postcode of cb23bu. Can I assist you further today? Sentence11: Is there anything else I can assist you with today? Sentence12: The attraction should be in the center and should be in the type of college. Make sure you get phone number and postcode. Sentence13: Yes, I'd like to find a good restaurant please. I'm in the mood for Indian food and money is no object. Sentence14: Great, thanks very much! Sentence15: Great I also need a taxi that will help me commute between the two places. Sentence16: I'm not ready to book a table yet. Can I get the address including postcode, please? Question: Who has spoken the sentence 4? (A) User (B) System
Output: 


Answer: (A) User