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: No, I am all set. Bye. Sentence2: Great! Can I have the Goden Curry? Sentence3: 12:30 on Sunday. There will be 8 of us. Sentence4: There are six restaurants that match that description. Can recommend one of them for you? Sentence5: I would like a restaurant in the centre that is in the expensive price range. Sentence6: There are 33 restaurants in the centre that are in the expensive price range. What type of food would you like? Sentence7: Sure, when would you like to make a reservation? Sentence8: I guess I could try 11:30. Sentence9: Yes please do. Sentence10: Reservation booked with The Curry Garden for Sunday at 11:30am for 8 people. Your reservation will be held for 15 minutes. Reference number is 6GRFMVDJ . Sentence11: Yes, there's the Goden Curry, Saffron Brasserie, Panahar, and Curry King. Sentence12: Sorry, there is no table available then. Would you like to try another time slot? Sentence13: I think I'd rather try a different restaurant at my preferred time, actually. You mentioned there are several others? Sentence14: I apologize. I have checked all of the restaurants in the area and none of them can accommodate 8 guests at 12:30 on Sunday. Would a different day or time suffice? Sentence15: Great can I get a reservation there for 8 people at 12:30 on sunday? Sentence16: You're welcome. Anything else I can help with today? Sentence17: Thank you. Have a nice day, goodbye. Sentence18: The Curry Garden serves expensive Indian food in the centre of town. Sentence19: Thank you so much. Sentence20: I am interested in Indian food please. Question: Who has spoken the sentence 3? (A) User (B) System
Output: 


Answer: (B) System