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 like to book a table for 5 people at 17:45 on Wednesday. Also could you give me the reference number? Sentence2: Absolutely. It is an indian restaurant located in the centre. It is in the expensive price range. Sentence3: There are several guesthouses/hotels that are available. What price range are you looking for? Sentence4: I am not looking for a specific price range but I do need it to have free wifi and free parking. Sentence5: I was able to book you a table at the restaurant. It will be reserved for no more than 15 minutes. Is there anything else i may help you with? Sentence6: Sure thing - The Allenbell is located at 517a coldham lane, cb13js. Is there anything else I can help you with today? Sentence7: There are 25 lodging options that have both free WIFI and parking, do you have an area in mind to stay in? Sentence8: No, thank you! That'll be all for today! Sentence9: I need information on a restaurant called saffron brasserie please. Sentence10: I would like a guesthouse on the east side of town. Sentence11: No, I'll take the address for the first one listed. Sentence12: There are 5 such places. Do you have a preferred price range? Sentence13: Yes I'll also need a place to stay as well as a reference number for my reservation. Sentence14: Alright, have a nice day. Question: Who has spoken the sentence 1? (A) User (B) System
Output: 


Answer: (B) System