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: Thanks, that's all I needed today. Goodbye! Sentence2: Can you give me the phone number and postcode? Sentence3: I'm looking for a place to go in the centre. Sentence4: Booking completed! Booked car type : red ford Contact number : 07349747219 Sentence5: The Vue Cinema is exactly what you're looking for! It's located at The Grafton Centre, East Road. Do you want any more information? Sentence6: I also need a taxi to get to the restaurant by 15:15. Sentence7: how about bedouin? it looks lovely Sentence8: Yes, can you reserve a table at a restaurant for 2 people at 15:15 on saturday. Type of food doesn't matter just in the same area as the attraction. Sentence9: Ok, there are 44 different attractions in the centre. Any particular type? Sentence10: Nothing particular. Maybe a cinema? Sentence11: Sounds good. Please book Sentence12: I've booked you at bedouin on Saturday at 15:15. Your Reference number is : OM74MYOM . Sentence13: Okay great let us know if you need anymore assistance. Sentence14: Phone number is 08712240240 and postcode is cb11ps. Is there anything else I can assist you with? Question: Who has spoken the sentence 3? (A) User (B) System
Output: 


Answer: (B) System