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 Indian food. Sentence2: great. can i get the address and entry fee? Sentence3: That is all I need today, thank you. Sentence4: I'm also looking for someplace to go in the same area as the restaurant. Can you help with that? Sentence5: 46 Jesus Ln, Cambridge CB5 8BW. No entrance fee. Anything else I can assist you with? Sentence6: There are few places that are cheap in the Center. You can make your choice from our list based on the Kind of food you prefer. Sentence7: Um, I don't see any sort of list. Could you recommend something? Sentence8: Old churches would be nice thank you Sentence9: There are several in the area. Do you have a preference of the type of attraction? Sentence10: Okay, there are 5. I recommend All Saint's Church on Jesus Lane. Sentence11: Thank you for using our system today! Sentence12: Done. You have a reservation for 3 at kohinoor on Friday at 18:45. Your reference is 37R6X4JS and the table will be held for 15 minutes. Will that be all today? Sentence13: There are three cheap Indian restaurants in the centre of town. I have heard great things about the chef at Kohinoor. Would you like me to make a reservation? Sentence14: Hello, I am looking for a cheap place to dine in the centre. Sentence15: Yes. Book that one for 3 people on Friday at 18:45. Sentence16: What type of food would you like? Question: Who has spoken the sentence 2? (A) User (B) System
Output: 


Answer: (A) User