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 the gonville and the lensfield hotels. When would you like the room? Sentence2: Could you find me one with a star rating of 3? Sentence3: Sure, there is one in the centre area and one in the south. Do you have a preference? Sentence4: Okay no problem. I have booked you at the gonville hotel for 4 nights starting friday. The reference number is 7KJDALDO . Can I help with anything else? Sentence5: Ali Baba is a moderately priced labanese restaurant in the centre. Would you like to make a reservation? Sentence6: Yes, I also need a Lebanese restaurant in the center of town. Sentence7: Doesn't matter. I also need free parking. Sentence8: I can't wait. Please book a table for 1 at 13:00 on Friday, please. Sentence9: gonville hotel hotel centre expensive 3 yes yes 01223366611 cb11ly gonville place the lensfield hotel hotel south expensive 3 yes yes 01223355017 cb21en 53-57 lensfield road Sentence10: Booking was successful. The table will be reserved for 15 minutes. Reference number is : JVL68LSJ . Anything else I can help with? Sentence11: Have a great day. Good day. Sentence12: That is everything, thank you. Sentence13: Yes can you please and send me the info? Sentence14: No area does not matter please recommend one. Sentence15: I need a hotel with free wifi. Sentence16: It seems we are on different pages here. Ok, just please book a room for at the Gonville Hotel, 1 person, 4 nights, starting Friday. Sentence17: What part of town are you planning to stay in? Sentence18: There are eight results. Is there a certain price range you'd like? Question: Who has spoken the sentence 3? (A) User (B) System
Output: 


Answer: (B) System