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: Yes, can you tell what parks are good in town? Sentence2: Hello, can you show me any moderately-priced restaurants in the Centre of town, please? Sentence3: I like sheep's green and lammas land park fen causeway, because I can pet all of the nice soft pretty animals. Would you like to play with the animals too? Sentence4: That sounds like it'll be fun to visit. What is the entrance fee, address, and phone number? Sentence5: Have a great day. Sentence6: Yes a table for four. Thank you Sentence7: Whatever park you think is the best one. Sentence8: Actually, I don't need a reserved table after all. But, can I get their phone number please? Sentence9: What time and day were you plan on eating at the Yippee Noodle Bar? Sentence10: Yes, there are over 20 of various types, do you have any type of food that you are craving? Sentence11: I am looking for Thai food. Sentence12: I'm sorry, there isn't a Thai restaurant there. Any other ideas? Sentence13: What about asian oriental? Sentence14: The free park is located at fen causeway, newnham road. The telephone number is 01223302580. May I help with anything else? Sentence15: Sure, the number is 01223518111. Is there anything else I can assist you with? Sentence16: Yippee Noodle Bar meets your criteria. Would you like to book a table? Sentence17: No. All set. Thanks. Sentence18: I sure can. There are five parks in town. Would you prefer to visit one in a particular part of town or are you open on the location? Question: Who has spoken the sentence 6? (A) User (B) System
Output: 


Answer: (A) User