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: sure, i have 11 options for you Sentence2: Booking was successful. Reference number is : 8FI2LR0P . Sentence3: Alright, have a lovely day. Goodbye. Sentence4: north 2 star and should include free wifi Sentence5: To the restaurant, I would like to arrive before the reservation time of 18:45. Sentence6: What time would you like the reservation for? Sentence7: Can I recommend the Lovell Lodge and make you a reservation? Sentence8: Will you be going from the Lodge to the restaurant? And what time do you want to leave or arrive? Sentence9: I also need a cab to get me to and from both places. I need the contact # and car type Sentence10: I would like it at 18:45. Sentence11: You have your choice of Hakka or The Hotpot, in luxury options, or the moderately priced Golden Wok. Sentence12: I was able to book the table for you per your request. Your reference number is : 1WEOP8WM . Is there anything else you need help with? Sentence13: OK, look for a grey Lexus. The contact number is 07361322317. Can I help with anything else today? Sentence14: That'll be everything thanks! Sentence15: Yes please. I need the reservation to be for 5 people and 4 nights starting on Friday. Sentence16: So I'm planning a trip and I need some information about where to stay in the North. I prefer hotels with free parking Sentence17: Thank you. I would also like to find a Chinese restaurant in the same area. Can you let me know what is available? Sentence18: The Hakka sounds good. Can you book it for 5 people on friday? Question: Who has spoken the sentence 17? (A) User (B) System
Output: 


Answer: (B) System