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 suggest Kohinoor. The address is 74 Mill Road City Centre. Would you like me to book a table for you? Sentence2: Thank you so much, that is everything that I need. Sentence3: Unfortunately, they are booked at that time. Can I try another time for you? Sentence4: Thank you. Goodbye. Sentence5: Oh, there are many nice Indian restaurants to choose from. What price range are you looking for? Sentence6: That was successful. Your reference number is HMN75TCM . Sentence7: I am looking for a cheap Indian restaurant located in the centre, Sentence8: I will be leaving from hamilton lodge and heading to the restaurant. Sentence9: Your car is booked. A black tesla will pick you up at Hamilton Lodge and get you to Kohinoor by 14:00. Their contact number is 07942596374 if you need to call. Sentence10: Can you tell me where you will be leaving from? Do you want me to make a hotel reservation for you? Sentence11: I sure can! The Hamilton is a guesthouse on the north side. It is moderately priced, has 3 stars, free internet and parking. Would you like a room? Sentence12: Wonderful! I also need some information about a hotel called the Hamilton Lodge. Can you help me with that? Sentence13: Can you reserve me a taxi that arrives to the restaurant before 14:00 on wednesday? Sentence14: Okay, let's try for 13:00 instead. Sentence15: Sure. I just need a table for myself at 14:00 on Wednesday. Sentence16: Hi, I'd like to try some Indian food. What do you have? Question: Who has spoken the sentence 10? (A) User (B) System
Output: 


Answer: (A) User