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, please just forward me the area, hotel type and their phone number. Sentence2: Acorn house has free wifi. Is that okay? Sentence3: We dont have any hotels that have no internet with 4 stars Sentence4: Sorry, my search didn't bring back any results. Sentence5: I'm terribly sorry, I misspoke. There are two 4-star hotels in the expensive range with wi-fi--the Huntington Marriott in the west and the University Arms in the centre of town. Sentence6: There are two hotels that fir your description in the expensive price range. One is in the west and one is in the centre. Which would you prefer? Sentence7: Sure, it is a hotel and the phone number is 01480446000. Is there anything else I can help you with? Sentence8: No problem, thank you for using Cambridge TownInfo centre. Have a great day! Sentence9: Try changing from no internet to free wifi and see what happens. Sentence10: thanks for helping Sentence11: Are there any that include free parking and that are in the expensive price range? Sentence12: No, I think I will wait on booking at this time. Thank you for your assistance. Sentence13: Do you need me to book you a reservation? Sentence14: I am looking for a place to stay. The hotel doesn't need to include internet and should have a star of 4 Sentence15: I need one with wifi. Sentence16: The Huntington Marriott in the west would be great. What is the hotel type and phone number? Question: Who has spoken the sentence 5? (A) User (B) System
Output: 


Answer: (B) System