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, thank you. Please go ahead and make a reservation at Meze Bar. Sentence2: I'm looking for an expensive restaurant in the centre of town. Sentence3: Please do, thank you. Sentence4: meze bar restaurant is great. it is located in196 Mill Road City Centre, cb13nf. can i give you their phone numbers? Sentence5: I located the Meze Bar restaurant for you but have not made a reservation per your request. Would you like me to locate a different restaurant? Sentence6: Gonville Hotel is in the Centre, has 3 stars in the expensive price range. Would you like a reservation? Sentence7: I also would like a restaurant. Sentence8: I'd like to try some Turkish cuisine if there's a restaurant that serves it. Sentence9: They do have free parking yes. Sentence10: I can help you with that. Are there any other requirements you are looking for? Sentence11: And what's their phone number? Sentence12: Do they offer free parking? Sentence13: Have a nice day. Sentence14: I would like to leave the restaurant by 11:15. Sentence15: Ok sure, When and with how many people will you be dining at Meze Bar? Sentence16: That's all the information I need on the hotel. I would like to book a taxi to commute between the restaurant and the Gonville Hotel. Sentence17: No. thank you. I am also looking for a place to stay. I would like a 3 star hotel in the expensive price range. Sentence18: Booked car type : black bmw Contact number : 07798470642 Sentence19: What time would you like to travel? Sentence20: I'll do that later once I find out how many people can make it. Thank you for all your help. Sentence21: It is 01223366611 Sentence22: I'm sorry, they do not have a phone number listed. Would you like to book a table? Question: Who has spoken the sentence 18? (A) User (B) System
Output: 


Answer: (A) User