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: Yes, Hi! I am looking for a hotel in the tampa bay area. Sentence2: Thank you for all your help. Sentence3: You are welcome. Thank you for calling. Sentence4: I'd like somewhere to go in town. Something in the centre please. Sentence5: You did not read the directions of this hit. There is no Tampa bay area. Please read the directions next time. Sentence6: I would like to leave on Sunday and arrive by 18:45. I need tickets for 8 people. Could you make the reservation and provide a reference number? Sentence7: 8 tickets please, and I will need the reference number. Sentence8: I can get you on TR0523 arriving at Stevenage by 14:10. How many tickets will you need? Sentence9: Anything you recommend. I just need the entrance fee, attraction type and phone number. Sentence10: i'm sorry, dude. i'm from florida so i'm not very smart. i'm trying to get from cambridge to stevenage. Sentence11: Little Saint Mary's Church is an architecture attraction with no entrance fee. Their phone number is 01223366202. Sentence12: If you would like to take a train from Cambridge to Stevenage there is one leaving Friday at 05:21 arriving by 06:10. Does that work? Sentence13: Is there anything in particular you're interested in doing/seeing? Sentence14: Your booking was successful. The total fee is 81.92 GBP which can be paid at the station. The reference number is 1A9JYQS7 . Question: Who has spoken the sentence 8? (A) User (B) System
Output: 


Answer: (A) User