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 have you booked in at that time and day. Sentence2: I need a taxi to commute between the two places. Sentence3: The hotel to the restaurant please Sentence4: I'm also looking for an Italian restaurant, something in the same area as the hotel. Sentence5: Yes, please make it for the same group of people at 15:00 on the same day. Sentence6: Booking was successful. Reference number is : UN2JUAA4 . Sentence7: There are several guesthouses on the east side. I recommend the Allenbell. It's cheap, but it still gets 4 stars. Sentence8: I have one restaurant called Pizza Hut Fen Ditton and it is moderately priced. Would you like me to make a reservation? Sentence9: I also need a taxi Sentence10: I'm looking for a guesthouse where I can stay in east Cambridge. Sentence11: I can help with that! When and were would you need your taxi? Sentence12: Booking completed! Booked car type : red honda Contact number : 07823449934 You will arrive by 14:45. Sentence13: I was hoping for one that is in the moderate price range. Sentence14: Okay, so you'll be going to the restaurant from the hotel? Or to the hotel from the restaurant? and at what time, please? Sentence15: Yes, actually. Can you reserve a room for me for Friday for 3 guests? Sentence16: Okay I have the A and B guesthouse in the moderate price range. Would you like to book that? Sentence17: Thanks, that's all. Good bye. Sentence18: Thank you for contacting us have a nice day. Question: Who has spoken the sentence 16? (A) User (B) System
Output: 


Answer: (A) User