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 reserved you a blue tesla, Contact number : 07639403969. Is there anything else I can help you with? Sentence2: Would you be able to schedule a taxi to take me from the Huntingdon Marriott to the Maharajah Tandoor? Sentence3: I also need information on the maharajah tandoor restaurant please. Sentence4: Sure thing, what time would you like to arrive at your destination? Sentence5: You are welcome. If you need anything else, we are always here to help. Sentence6: No. Thank you. Goodbye. Sentence7: I don't care about price range, but I do want the hotel to have a 4 star rating and have free wifi. Sentence8: You're welcome. Have a wonderful day! Sentence9: Huntingdon marriott post code is pe296fl and the cambridge belfry postcode is cb236bw. Anything else I can assist you with today? Sentence10: No that is all thank you for your help! Sentence11: Yes, please book a table for 1 at 16:00 on Wednesday. Sentence12: I need to arrive in time for my reservation. Sentence13: Hi, I need a hotel on the west side, please. Sentence14: I have completed the booking. The table will be reserved for 15 minutes. The reference number is KQLHM8ST . Sentence15: We have a couple options available to you, is there a particular price range you are looking for? Sentence16: I have the Huntingdon Marriott that is more expensive. Also, the Cambridge Belfry that is cheap. Do you have a preference? Sentence17: Can you tell me their post codes? Sentence18: It is an expensive restaurant in the west area serving indian food. Would you like me to book it for you? Question: Who has spoken the sentence 16? (A) User (B) System
Output: 


Answer: (A) User