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 have 3 hotels that fit your criteria. Would you like one located in the north or the east? Sentence2: I would like to find a French restaurant, please. Sentence3: Great, I'm glad I could assist. Enjoy your trip, have a good day! Sentence4: Well then, I would recommend the Ashley hotel. Would you like me to book a room for you? Sentence5: If it's moderately priced, yes please. Sentence6: There are four moderately priced Indian restaurants. Two are in the east. Would you like me to make a reservation for either Curry Prince or Rajmahal? Sentence7: You can try cote in the centre. Need a reservation? Sentence8: Okay I've booked you at Curry Place. Your reference number is Reference number is : EP4ZPSL2 . Do you need anything else? Sentence9: Yes, The hotel should include free wifi and doesn't need to have free parking. Sentence10: I do not have a moderate priced French place. Do you have another kind in mind? Sentence11: Hmm. How about Indian instead? Sentence12: I am looking for a 2 star hotel with free wifi. Sentence13: Yes, please book me for 2 people at 14:30 on Monday. Sentence14: I also need to find a place to stay while I am in town. Sentence15: How many stars do you want. Sentence16: book it for the same group of people and 4 nights starting from the same day. Sentence17: thank you. you took care of all my needs. thanks. bye. Sentence18: Your room has been booked. Your reference number is PWWHLH5V . Question: Who has spoken the sentence 11? (A) User (B) System
Output: 


Answer: (B) System