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 need to arrive by 19:30. Sentence2: The TR4964 arrives by 06:08 on monday, and is 10.10 pounds. Sentence3: I would like to leave on Monday Sentence4: You're very welcome, have a wonderful day! Sentence5: Could you give me the phone number and postcode for the Bloomsbury? Sentence6: Thank you so much, that is all I need. Sentence7: Okay, what day would you like to leave? Sentence8: I have 2 in the centre of town,the varsity restaurant and bloomsbury restaurant Sentence9: Yes, I'd be willing to try international cuisine if you could find an establishment that serves it. Sentence10: Yes. I need to find a train going to Stansted Airport by 19:30. Sentence11: The phone number is 08719429180 and the postcode is cb23dt. Do you need anything else? Sentence12: I would like to try something new, I am looking for an Irish restaurant, preferably in the moderate price range. Sentence13: I am sorry their are no irish restaurants in my data base, may I help you with something else Sentence14: There are 14 trains on Monday from cambridge to stansted airport. For clarification, do you want to leave or arrive by 19:30? Question: Who has spoken the sentence 8? (A) User (B) System
Output: 


Answer: (A) User