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: Nope, don't book it! Please give me the address instead. Sentence2: Restaurant two two is a french restaurant in the north part of the city and cote is in the centre of the city. Do either of those sound good? Sentence3: How many people should I book for the restaurant? Sentence4: Okay, would you like to try any specific type of food? Sentence5: Yes. I need to a place to go. I'm thinking it would be convenient if it was in the same area as the restaurant. Sentence6: I can go ahead and help you with that. Are you looking for a particular type of food? Sentence7: Can you list places for french food? Sentence8: I am looking for a place to dine that is in the expensive price range. Sentence9: Thanks, you too! Sentence10: Yup book it thanks! Can you recommend a place to go nearby as well? thank you Sentence11: Thank you. Have a great day! Sentence12: Please click on end of dialogue. Sentence13: Yes, I would also need a taxi to go between the two places. Sentence14: I want to leave the attraction by 11:45. Sentence15: All saints church and Holy trinity church are nice places if you are into architecture. They both have free entrance. Do one of these interest you? Sentence16: Cote sounds good. What is the address? Sentence17: Booking completed! Booked car type : red honda Contact number : 07362331493 Sentence18: I have no listings for lebanese food in the expensive price range. Would you like to try something else? Sentence19: Oops. Sorry about that. Sentence20: Sure, the address is Bridge Street City Centre. What else can I help with? Sentence21: Nothing in particular what would you recomend and what are the entrance fees? Sentence22: Let's go with lebanese. Sentence23: I am in the mood for Lebanese food. Sentence24: What time would you like to travel? Sentence25: You have a particular type of attraction in mind? Sentence26: The address for Cote is Bridge Street City Centre. Would you like me to reserve you a table? Question: Who has spoken the sentence 16? (A) User (B) System
Output: 


Answer: (A) User