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: Okay have a great rest of your day! Sentence2: I also need a place to stay. Sentence3: No thank you. Sentence4: The lensfield hotel is an expensive hotel in the south. The address for it is 53-57 lensfield road. What day would you like to book the room for? Sentence5: Eggrolls! They're good too - do you have any listings for Chinese restaurants? Sentence6: Unfortunately, there are not any expensive scandinavian restaurants in the area. How about another type of cuisine? Sentence7: I found one named 'the good luck chinese food takeaway' located on 82 Cherry Hinton Road Cherry Hinton. Sentence8: I've found four different hotels in the south, all of which have free wifi and parking. Would you like it o be cheap, moderately priced, or expensive? Sentence9: Your reference number is QA74KS8I . Have a good day. Sentence10: I would like the reservation for Tuesday please. Sentence11: Something in the same range as the hotel please. Sentence12: I don't need to book it. Thanks for the help. Sentence13: yes i would like scandinavian food Sentence14: No problem at all! Is there anything else I can help you with today? Sentence15: I would be happy to help you with that! Can you specify what area you would like to stay in? Sentence16: I am hoping to find an expensive place to dine out while I am visiting. Sentence17: Yes, I would like a table there at 11:15. We will have 8 people. I'll need the reference number. Sentence18: I'd like to be in the same area as the restaurant that we booked please. Sentence19: We have quite a few options available to you. Is there a particular cuisine you are interested in? Sentence20: It is, as a matter of fact. Would you like a table there? Sentence21: If the restaurant is a 3 star rating I will take it. Can I have the address and hotel type please? Sentence22: For what day will this be for? Sentence23: Is it in the south? I need one that's in the south. Sentence24: The lensfield hotel is in the expensive price range, would you like to book a room there? Question: Who has spoken the sentence 9? (A) User (B) System
Output: 


Answer: (B) System