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 would like the reservation at 19:30 please. Sentence2: Do they have a table available for 5 people on Wednesday night? Sentence3: Can you try a different restaurant in the same area and price range? Sentence4: I'm sure I can. We have 17 chinese restaurants. Is there an area of town you'd prefer? Sentence5: Can you help me find a Chinese restaurant please? Sentence6: A table is reserved for you at Dojo Noodle Bar. Your reference number is AEQLOL33 . Sentence7: There is an asian oriental cheap restaurants called Dojo Noodle Bar. Would you like to book there instead? Sentence8: I am sorry there are no others in any other areas,could I check another price range? Sentence9: Thank you for all your help today. Sentence10: How about the Charlie Chan restaurant? Sentence11: What about another restaurant in a different area but same price range? Sentence12: Have a lovely day. Goodbye. Sentence13: I'm sorry but I was unable to make a booking. Could we try another day or time? Sentence14: I would like to be in the centre of town, and if it could be inexpensive, that would be ideal. Sentence15: I suppose that would be all right. Sentence16: For what time please? Sentence17: No thank you I need it in that area and pricerange. Sentence18: I am sorry there are no others in the same area and price range. Question: Who has spoken the sentence 17? (A) User (B) System
Output: 


Answer: (B) System