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 made that reservation for you on Friday. The table will be reserved for 15 minutes and your reference number is LZIIKO5Q . Sentence2: I want it to be a guesthouse,have free parking. Sentence3: There are 22 Indian restaurants, do you have an area or price range you are interested in? Sentence4: You are very welcome. Good bye Sentence5: There are a few choices. Are there any other requirements you are looking for? Sentence6: I would suggest curry prince. Sentence7: Okay, how about indian food? Sentence8: can you book it for 5 night for 7 starting on friday ? I also need free parking Sentence9: Booking was successful. Reference number is : MTZOYGHK Sentence10: I would reccomend the allenbell. Will this work for you? Sentence11: I'm sorry, there are no Swedish restaurants in the city. Do you have another cuisine in mind? Sentence12: Thanks so much for all of your help you've been great! Sentence13: I would also like to find some Swedish food. Sentence14: Sound great! Can I book a table for 7 at 17:00 on Friday? Sentence15: Is there anything else I can help with? Sentence16: Hi I am looking for a place to stay with a 4 star rating in the east part of town. Sentence17: Nope, that's all I needed today. Thank you, goodbye! Sentence18: Can you find me something in the east part of town? Price range doesn't matter. Question: Who has spoken the sentence 12? (A) User (B) System
Output: 


Answer: (A) User