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 will need a taxi to get to the botanic gardens. Sentence2: am also looking for a particular restaurant. Its name is called the copper kettle Sentence3: Can you help me find Cambridge University Botanic Gardens? Thanks. Sentence4: Great that's all I needed, thank you. Sentence5: The postcode is cb21sj. Can I help you with anything else? Sentence6: No problem, we are always here to help. Good day! Sentence7: I'm sorry, I do not have that information. Sentence8: what's the postcode? Sentence9: Ok. The copper kettle is a british restaurant located at 4 Kings Parade in city centre. Sentence10: Do you need it from the restaurant? What time would you like to leave? Sentence11: Do you know the hours that they are open? Sentence12: I would like to leave by 21:15. Could you provide a contact number and car type? Sentence13: I'm looking at Yellow Lexus that will pick you up from the restaurant. The contact number is 07336692498. Sentence14: Yes, cambridge university botanic gardens is a park located in the centre of town, there is a 4 pound entrance fee. Question: Who has spoken the sentence 5? (A) User (B) System
Output: 


Answer: (B) System