You are shown a conversation between a user and system. Identify who has spoken the indicated sentence based on the conversation.

[EX Q]: Sentence1: I'm going to saint johns chop house. Sentence2: What is your destination? Sentence3: The contact number is 07727071722. Is there anything else I can help you with? Sentence4: I can help you with that. When do you need to leave? Sentence5: No that is all Thank you goodbye. Sentence6: I need the contact number please. Sentence7: Your taxi is booked. Look for a yellow Volkswagen. Sentence8: Please call us anytime. Good Bye. Sentence9: I need to get a taxi out of holy trinity church. Sentence10: I need to arrive at the chop house by 22:30. Question: Who has spoken the sentence 2? (A) User (B) System
[EX A]: Answer: (A) User

[EX Q]: Sentence1: Thanks, can I also have the phone number and postcode? Sentence2: I'm sorry this happened to you, I really hope that the police are able to help. If there is anything else I can do for you don't hesitate to ask. Sentence3: Yes, the postcode is CB11JG and the phone number is 01223358966 Sentence4: I've been robbed and need the police. Sentence5: Great, thank you for your help. I don't need anything further. Sentence6: Okay, the police station is located at Parkside, Cambridge. Question: Who has spoken the sentence 5? (A) User (B) System
[EX A]: Answer: (B) System

[EX Q]: 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
[EX A]:
Answer: (A) User