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've booked your hotel for a 3 night stay for 5 people. Your reference number is IO1X1H8Q . Can I help you with something else? Sentence2: Thank you for contacting us and have a nice day. Sentence3: The booking was successful. The table will be reserved for 15 minutes.Your reference number is : XL60G8AI . Sentence4: There are none in the centre area however there are some in the north, south, or east. Which area would you like? Sentence5: I don't have anything that fits all your specific requests in that area. Would you like to try a different area or would you be willing to change specifics? Sentence6: it doesn't matter just book a room for 3 nights I'll need the reference number then too please Sentence7: Great. Can you make me a reservation for 5 people at 14:30 on Wednesday. Sentence8: Surely there's got to be a moderately priced 4 star hotel in the Cambridge area that offers free parking and internet. Can you please check again? Sentence9: No thanks that's all I need for now. Thank you for your help. Sentence10: I would like to find a certain restaurant called the Maharajah Tandoori Restaurant. Can you find it for me? Sentence11: It is located at 41518 Castle Street City Centre. Sentence12: We have 33 places to stay in the area. Would you like to narrow down your needs, like price range or area? Sentence13: Well I would like it to be moderately priced, 4 stars and include free wifi and include free parking. Sentence14: Thanks so much. I'm also looking for a place to stay. Question: Who has spoken the sentence 12? (A) User (B) System
Output: 


Answer: (A) User