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'm looking to slum it a little bit, do you have any 0-star places? Sentence2: No, that's all. thank you very much. Have a great day. Bye. Sentence3: My apologies. The guesthouse is the el shaddai and the hotel is the cityroomz. Can I help with anything else? Sentence4: We sure do! There is a guesthouse in the cheap price range as well as a hotel in the moderate price range. Would you like more information on these? Sentence5: The TR2530 leaves at 17:29. Sentence6: It should have wifi please give me the postcode Sentence7: They both have wifi. Postcode for the guesthouse is cb11eg and the postcode for the hotel is cb12tz. Do you need any further information? Sentence8: Hello I need a place to stay in the centre please. Sentence9: I need to leave after 16:00 and go to Bishops Stortford please. Sentence10: Thank you for that, I am also looking for a train as well. It should depart from cambridge on Monday. Sentence11: That sounds perfect, but I just realized you never gave me the names of those two lodging accommodations. Could I have those please? Sentence12: Thank you for using our service. Have a great day. Sentence13: Where would you like to go? Is there a specific time you'd like to leave or arrive? Sentence14: I have 5 establishments in the centre. Did you have preference in price? Question: Who has spoken the sentence 10? (A) User (B) System
Output: 


Answer: (A) User