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 need to find a place to eat in the centre of town. Sentence2: we have over 60 restaurants listed. May I get the type of food you may be looking for? Sentence3: The phone number is 01223576412. Is there anything else I can help you with? Sentence4: May I get the phone number then to contact them? Sentence5: What is the address, entrance fee, and postcode? Sentence6: Yes, thank you. Can I also get the postcode and address for Bangkok City? Sentence7: The cherry hinton village centre is located at colville road, cherry hinton postcode cb19ej. I'm sorry but our system does not have information on what the fee to enter is. Sentence8: I'll just drop in, thanks. I also want to see a multiple sports complex in the same area. Are there any nearby? Sentence9: Well, you're welcome then! Have a great day! Sentence10: I am looking for a expensive restaurant in the centre that serves thai food. Sentence11: There are no multiple sports complexes in the same area but there is one in the east. Would you like more information? Sentence12: Bangkok City matches your critera! Their phone number is 01223354382. Do you need me to book a reservation? Sentence13: No that is all the info I need thanks. Sentence14: Bangkok City is located at 24 Green Street City Centre and the postcode is cb23jx. May I book it for you? Question: Who has spoken the sentence 6? (A) User (B) System
Output: 


Answer: (A) User