Given the task definition and input, reply with output. You are shown a conversation between a user and system. Identify who has spoken the indicated sentence based on the conversation.

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
Answer: (A) User