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 sorry there are still no matches. Would you like me to check for a different type of food? Sentence2: it will be late at night around 22:00 Sentence3: I think I can find it. Could you book a table for 8 on Friday for 16:45? Sentence4: I am also looking for an attraction in the same are. Sentence5: I have eight attractions in that area. What type of attraction would you prefer? Sentence6: You're welcome! Likewise! Sentence7: Thank you so much, Have a great Day! Sentence8: I don't have a preference can you make a suggestion? Sentence9: I'll a taxi to get between the 2 places. Sentence10: I can help with that. What time do you want to depart? Sentence11: Great! Thank you! Sentence12: That sounds good can I get the postcode and phone number? Sentence13: I'm sorry there are no moderate priced steakhouses, would you like to try another price range? Sentence14: Yes, I have a match. There is a Pizza Hut Cherry Hilton. Would you like the address and phone number? Sentence15: I would recommend tenpin it is entertainment. Sentence16: Their postcode is cb17dy and their phone number is 08715501010. Sentence17: I'm sorry. Can you check the south and see if there is one? Sentence18: Sure, are there any moderately priced Italain restaurants in the south? Sentence19: You're all set. Your reference number is UTUFXTA1 . Sentence20: You're welcome they will hold the table for 15 minutes. Would you like anything else today? Sentence21: I have booked your taxi. Be expecting a yellow Toyota. Please call 07036604181 should you need to reach them. Sentence22: I'm looking for a moderately priced steakhouse. Question: Who has spoken the sentence 2? (A) User (B) System
Output: 


Answer: (A) User