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: It is in the centre area. Sentence2: May I suggest the Carolina Bed and Breakfast? It's located in the east and has 4 stars. There is parking and internet with this as well. Sentence3: I'd suggest acorn guest house. Would you like a reservation? Sentence4: Okay great. Let's book it for tuesday at 16:45, with 3 people. And please remember to send the reference number Sentence5: Hm, I think I want to hold off on a booking. But I do need to book a place to eat. I think I'll just want north american food. Sentence6: What part of town is it in? Sentence7: You're welcome and enjoy your stay. Sentence8: Any time is fine. What area is it located? Sentence9: The only North American place in town is the Gourmet Burger Kitchen. Their food is wonderful. Would you like to book a table? Sentence10: The north park of town,would you like me to book it for you ? Sentence11: Great.!! Nope that'll be all .Thank you have a great day Sentence12: I am looking for a guesthouse in the moderate price range which includes free parking. Sentence13: Yes, let's book a room here. Sentence14: When would you like to book a room at the acorn guest house? Sentence15: I'd really like to find a moderately priced guesthouse. Sentence16: Your booking was a success, and the reference number is TUVWUICU . Is there anything else I can do for you? Question: Who has spoken the sentence 14? (A) User (B) System
Output: 


Answer: (A) User