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 am going to the centre and want to go somewhere fun. Sentence2: I prefer the guesthouse, please. I'd like a reservation for 6 people, 2 nights. We'll be arriving on Tuesday. Sentence3: Sure, would you like to stay in the same centre area? Sentence4: That will be fine I need the address please. Sentence5: I have a cheap guesthouse and a moderate hotel in the center, both 0 stars. Do you have a preference? Sentence6: Booking was successful. Reference number is : 2H9TK6B3 . anything else? Sentence7: The address is 98 king street. Sentence8: Yes please and I'm looking for a 0 star rating. Sentence9: Thank you and enjoy your stay. Goodbye. Sentence10: I'm also looking for a place to stay. Sentence11: Are you interested in having dinner? Going to a bar? Going dancing? Sentence12: Thank you that is all I need. Sentence13: I have the broughton house gallery in the centre the entrance fee is free. Sentence14: I think I'd like to visit a museum perhaps. Can you suggest one? Question: Who has spoken the sentence 11? (A) User (B) System
Output: 


Answer: (B) System