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: You're welcome. Is there anything else I can help you with? Sentence2: I have made that taxi reservation. Look for a yello skoda and the contact number is 07041247281. Sentence3: Tandoori palace looks like a good fit for you. Could you like me to make a reservation? Sentence4: Not just yet but please get me their post code, phone number and address Sentence5: Yes, can you tell me if there are any concerthalls in the west? Sentence6: It was a pleasure helping you today. Good-bye. Sentence7: Thank you! Just give me the postcode and I should be good to go. Sentence8: They are located at 68 Histon Road Chesterton. Their phone number is 01223506055 and their postcode is cb43le. Anything else I can help you with? Sentence9: Awesome. Can I get a taxi from the College by 12:15? Sentence10: No, I'm sorry. The search didn't pull up any matches. Sentence11: Okay the postcode is cb30ds. Sentence12: I'd love to help! Where are you going? Sentence13: I want to find a restaurant in the west that serves light bites. Do you have any suggestions? Sentence14: What are some expensive restaurants? Sentence15: What about a college? Sentence16: I'm sorry, there are no concert halls located in the west, shall I check another area? Sentence17: I'd like Indian food, please. Sentence18: Okay, how about Churchill College? It's free to get in. Sentence19: I'm headed to Tandoori Palace from the College. Sentence20: No thank you! That will be all! Sentence21: There are a few choices in the expensive pricerange on the west side. What type of food would you prefer other than light bites? Sentence22: Thank you for booking that taxi and giving the contact number and car type. Question: Who has spoken the sentence 9? (A) User (B) System
Output: 


Answer: (B) System