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: Okay, I've got you book in a black lexus with Contact number 07490949646. Sentence2: the lensfield hotel is a 3 star hotel in the south and gonville hotel is a 3 star hotel in the centre Sentence3: We have a few choices to pick from, any preferences on pricing or area? Sentence4: The phone number is 01223366611. It is expensive. Sentence5: Thank you so much. That's all I need for today. Good-bye. Sentence6: I would like a hotel while in cambridge. It doesn't need parking or internet. Sentence7: The entrance fee is not available. Is there anything else I can help you with today? Sentence8: Thanks! I also want to ride on a boat, is that something you can help with? I would like to do this in the south area of town. Sentence9: What is the price range and phone number of the gonville hotel? Sentence10: The price doesn't matter are there any 3 star places available? Sentence11: Yes, I also need a taxi. I need to leave the hotel by 07:30. Sentence12: Hmmm...how about a nightclub, instead? Sentence13: Was there an entrance fee to that nightclub? Sentence14: Ok. I hope you enjoy your trip. Sentence15: No boats in that area, is there another location you have in mind? Sentence16: There is the place their address is 22 sidney street and number is 01223324600. Is there anything else I can help you with? Question: Who has spoken the sentence 13? (A) User (B) System
Output: 


Answer: (B) System