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 I would like it to be in the moderate price range. Sentence2: The total travel time is 79 minutes, just to double check, can I assist with anything else? Sentence3: Please get me the reference number too. Sentence4: I do need a hotel room booked. Sentence5: Okay, how many days will you be staying? Sentence6: I only am showing 1 it is cityroomz, when were you planning your stay so I can book the room for you? Sentence7: TR7047 leaves cambridge at 16:36 and arrives in norwich at 17:55. Will that work? Sentence8: There are 3 hotels in the centre of town with free wifi. Do you have a price range? Sentence9: I am leaving cambridge going to norwich on friday anytime after 16:15 will work for me Sentence10: There are lots of trains running on Friday. Do you have specific departure and destination points in mind? Sentence11: How many people will be staying at the hotel? Sentence12: I'm also looking for a hotel to stay at in the centre. Internet is not important. Can you help me with that? Sentence13: Can I book the train for you or help you with something else? Sentence14: Thank you - that is exactly what I need Sentence15: Are there any trains running this Friday? Sentence16: I'lll be staying 3 nights starting on Tuesday. Sentence17: You are now booked at Cityroomz! Your reference number is D8MU26MH . Can I help you with anything else? Sentence18: That is all for the hotel room. could you help me with one last thing? I need the travel time for train TR7047 Sentence19: I will book that for you now. Sentence20: You're welcome, have a good day. Sentence21: that's all thanks! Sentence22: There will be seven of us. Question: Who has spoken the sentence 12? (A) User (B) System
Output: 


Answer: (A) User