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: There are no cinemas in the East. Would you like me to look in a different area? Sentence2: Sure, this is an inexpensive Italian restaurant in the north, located at 20 Milton Road Chesterton. Would you like a reservation? Sentence3: I also need a taxi to take me from the water park to the restaurant by my reservation time, please. Sentence4: You're welcome, have a great day. Sentence5: Ok I made that taxi reservation. It's a blue toyota and the contact numner is 07403878307. Sentence6: The Cherry Hinton Water Play Park offers free admission. Is there anything more I can help with? Sentence7: That is all I need today. Thank you for your help! Sentence8: Yes, please, a table for 8 on Thursday. We'd like to dine at 12:45. Sentence9: Just the entrance fee, thank you. Sentence10: Can I help you with anything more today? Sentence11: Yes, I want to find out about da vinci pizzeria please. Sentence12: I am looking for cinemas in the east Sentence13: Thank you very much. Sentence14: There is 1 park in the east. The Cherry Hinton Water Play park near Cherry Hinton Hall. Would you like the phone number? Sentence15: Your reservation was successful. The table will be reserved for 15 minutes. Reference number is : GBZVHZAM . Can I help you with anything else? Sentence16: No. Is there a park? Question: Who has spoken the sentence 2? (A) User (B) System
Output: 


Answer: (A) User