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: There is the Ashley Hotel and Lovell lodge. Both are 2 stars. Which do you prefer? Sentence2: There has got to be at least one hotel in cambridge! Try for 3 nights. Sentence3: I need the hotel reserved for 3 people for 4 nights starting on thursday. Sentence4: Have a good day and I hope you enjoy your stay in Cambridge! Sentence5: Sorry, there were no results found. Sentence6: Which one is in the centre part of town? Sentence7: Sorry, no results were found. Sentence8: How about a hotel then in the cheap price range? Sentence9: No thank you that will be all Sentence10: sorry to disappoint but we dont have any Sentence11: Yes I need centre of town. Sentence12: No thank you that will be all Sentence13: We actually do have 10 cheap places to stay in Cambridge. 9 are guesthouses and 1 is a hotel. Sentence14: Can you try a cheap hotel? Sentence15: Out of the 10, there was one that was a hotel and not a guesthouse, the Cambridge belfry, I booked you, the reference number is DK6K73QS . Anything else today? Sentence16: I'm sorry but there are no cheap hotels in cambridge. Sentence17: Both are in the North. Are you looking for something in the Centre? Sentence18: I need to find a moderately priced condo style hotel in Cambridge that includes free parking. Question: Who has spoken the sentence 16? (A) User (B) System
Output: 


Answer: (A) User