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, there are a number of options. Did you have a particular area of town in mind? Sentence2: I'm leaving Monday from Cambridge and going to Leicester. Sentence3: 11:15 for 4 people,can you book it for me ? Sentence4: Hi. Can you help me find a train that is departing from leicester? Sentence5: Yes the north please. Sentence6: Unfortunately, we don't have any restaurants in the city that offer traditional food. Is there another type of cuisine I can search for? Sentence7: Milton Road Chesterton is the address. 01223568988 is the phone number. Can i help you with anything else today? Sentence8: What time were you wanting to leave around? Sentence9: no. i'm going to head out now. it was great that you could help. goodbye. Sentence10: Booking was successful, the total fee is 151.19 GBP payable at the station . Reference number is : DKHCMYX0 . Sentence11: Ok, well how about Chinese in the expensive range? Sentence12: Okay, I recommend Hakka on Milton Road Chesterton. Sentence13: What is your destination? What day will you be traveling? Sentence14: Ok great. Can I get the address and phone number? Sentence15: Have a lovely day, goodbye! Sentence16: Thank you. Can yo also find a restaurant that serves traditional food and in the expensive price range? Question: Who has spoken the sentence 9? (A) User (B) System
Output: 


Answer: (B) System