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'm looking for information on a hotel called the lensfield hotel. Sentence2: I need a cab by 12:30 too the contact # and car type will be most helpful Sentence3: Lensfield sounds perfect. I will need 5 nights please. Sentence4: how long is your stay? I am only showing the lensfield hotel, it has 3 stars and free internet and parking Sentence5: And how many people will be staying? Sentence6: I am sorry we didn't reserve a table for you at any restaurant, would you like to do that now? Sentence7: I reserved a table at cote for you, ref # is ZLK6W3CY . Sentence8: yes, expensive french food for 3 people at 12:30 on monday Sentence9: Ummm...can you book that for me? Or do I have to call the hotel myself? Sentence10: The Lensfield Hotel is a 3 star hotel in the south area. It offers internet and parking. Contact them at 01223355017. Thank you and have a great day! Sentence11: Sure, just need one more piece of info to complete your taxi booking. Which restaurant will the taxi be taking you to? Sentence12: anything else I can assist you with today? Sentence13: Is it Monday then? I want to make sure this is correct. (roles are reversed) Sentence14: I can definitely do that for you - when would you like to arrive? Sentence15: I STILL NEED THAT CAB! Sentence16: I need to know where you are traveling to Sentence17: Thank you and enjoy your stay ! Sentence18: your all set reference # is N970M2RY. Something else I can help you with? Sentence19: I need to stay for 5 nights. We'll be arriving on Monday. Sentence20: Thank you that is all I need Sentence21: still need a cab by my booked time, 12:30 please Sentence22: Yes it is Monday, sorry for any confusion Sentence23: I need to make a reservation! An expensive french restaurant 3 people on monday at 12:30, I should have just called myself Sentence24: the hotel to the restaurant please Sentence25: 3 for 5 nights starting wednesday, and I need the reference # then too please Sentence26: The roles are reversed- I need a cab now Question: Who has spoken the sentence 6? (A) User (B) System
Output: 


Answer: (A) User