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 would be more than elated to book a table for you, but what day and time would you like it for? Sentence2: I'd recommend clowns cafe. Would you like reservations? Sentence3: their post code is cb11ly Sentence4: I need the table for Tuesday at 14:45, but if for some reason Tuesday doesn't work Sunday is also acceptable. I will need the reference number as well. Sentence5: 01223355711 is your reference number. May i help you with anything else? Sentence6: I cannot locate the restaurant you are speaking of. Sentence7: I would like Italian food, if possible. Sentence8: No, that was everything. Thank you! Sentence9: Thank you for contacting us. Have a great day! Sentence10: I also need an expensive place to dine in the mid of town. Sentence11: it is called parkside pools. find me their post code. Sentence12: I am sorry, i'm looking for a attraction called parkside pools not a restaurant. Do you have their postcode? Sentence13: I wanted to find out about local restaurants in Cambridge. Sentence14: kindly be more specific Sentence15: that will be ok once you find the restaurant book a table for 6 people Sentence16: There are 33 restaurants with your requirements. What type of food do you feel like eating? Question: Who has spoken the sentence 5? (A) User (B) System
Output: 


Answer: (B) System