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, that would be fine. I don't need tickets, I just need the travel time, price, and train ID. Sentence2: I need a train that is headed to london kings cross and i need to arrive by 20:30. Sentence3: Thank you! I also need to find a moderately priced restaurant in the centre of town. Do you have any suggestions? Sentence4: That's all I need assistance with today. Thank you. Sentence5: The train id is TR0427, it leaves cambridge at 19:00 and arrives at london kings cross at 19:51. The cost is 18.88 pounds. May i be of further assistance. Sentence6: The TR8134 leaves at 17:00. Will that be okay? Sentence7: sure, where are you headed? Sentence8: I can help with that. What day will you be travelling? Sentence9: Unfortunately, I am unable to book at this time. Sentence10: I will be leaving Saturday. Sentence11: I need to book train tickets. Sentence12: There are quite a few to choose from. Do you have a cuisine preference? Sentence13: Thank you for your time. Sentence14: Sure! It will be 7 people at 16:00 on saturday. Please give me the reference number. Sentence15: I was able to reserve a spot for you at Restaurant One Seven. Here is your reference number, 3HSTWXS7 . Sentence16: No but I need it for 7 people on the same day. Sentence17: the oak bistro is a moderately priced british restaurant in the centre. Would you like me to complete a booking there? Sentence18: i would like to leave at 16:20 Sentence19: We have 8 trains to London Kings Cross that day. Is there any particular time you'd like to leave by? Sentence20: You are welcome enjoy. Question: Who has spoken the sentence 10? (A) User (B) System
Output: 


Answer: (A) User