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: Great, thanks so much! Can you please book me a taxi from the college to the restaurant that arrives by the time of my reservation? Sentence2: I am in the center are of Cambridge, are there any Japanese restaurants in that part of town? Sentence3: Reference number is : KJBB2GXB . Anything else? Sentence4: Have a nice day. Sentence5: Your taxi has been booked. It will be a grey Volkswagen and their contact number is 07598698020. Sentence6: What day and time would you like the reservation for? Sentence7: Yes, could you try the north please? Sentence8: Yes, if you could that would be great. Can I get their number please? Sentence9: I need reservations for 8 people please. Sentence10: Thank you. You as well! Sentence11: Unfortunately, there aren't any entertainment venues in the centre. Would you like me to search for a different type of venue or in a different area? Sentence12: The phone number is 01223339485. Sentence13: okay are their any colleges around? I need a phone number, entrance fee and address of one that you would recommend please Sentence14: Phone number is 01223462354. Is there anything else I can help you with? Sentence15: My favorite college in the centre is Jesus College on Jesus Lane. It's very Jesus-y. Would you like their contact information? Sentence16: phone number, entrance fee, and address. Sentence17: Yes, I am looking for places to go in the same area as the restaurant. Possibly and entertainment type of venue. Sentence18: I'm sorry, there are none in the north. I have found a few in the east, south and west. Would any of those areas work for you? Sentence19: Yes. There is one Japanese restaurant in the centre. It is called Wagamama and is in the expensive price range. Would you like me to place a reservation? Sentence20: I need a table for 8 at 14:30 on thursday. Question: Who has spoken the sentence 16? (A) User (B) System
Output: 


Answer: (A) User