In this task, you are given a conversation between a flight agent and the customer. You are given 4 options and you need to select the goal of the conversation. It is provided as part of customer's context, which has to be one of the following: `book`: Make a new reservation, `cancel`: Cancel an existing reservation, `no_flight`: No flight found for the customer's preference, `no_reservation`: No reservation / No change / No cancellation was made in the conversation, mostly enquiring details

[EX Q]: customer: Hi. 
 agent: Hello, how can I help you today? 
 customer: Can you please help me in changing my recent reservation? 
 agent: Sure, can I have your name please? 
 customer: Sure, my name is Sharon Parker. 
 agent: Ok, please wait for a while. 
 customer: Sure. 
 agent: Thanks for waiting, there is no active reservation on your given name. 
 customer: Ok, No issues. Thanks you. 
 agent: Thank you for opting us.
[EX A]: no_reservation

[EX Q]: customer: Hello, I am Michelle Parker. 
 agent: Hello, how can I be your helping hand today? 
 customer: As, I am a science student, I want to visit Perot Museum of nature and science for my research work in Dallas & Fort Worth, TX - DFW. Can you avail me to book a flight with one way station? 
 agent: Sure, we are happy to help you for booking. 
 customer: Thank you. 
 agent: Let me know your preferred journey dates. 
 customer: I want to fly on 12/09 and I intend to recur on 12/11. 
 agent: Ok, May I know your budget? 
 customer: I have sufficient amount for this trip, I can afford 5000. 
 agent: Ok, Can you please share your boarding point? 
 customer: I want to board from Oakland, CA - OAK. 
 agent: Ok, please wait for a couple of minutes. 
 customer: Sure, make it fast. 
 agent: Sorry to inform you that, there were no flight running at that location due to abnormal weather conditions. 
 customer: Ok, I will choose another way to reach my destination. Anyways thank you for sharing the information. 
 agent: Thank you for approaching our service.
[EX A]: no_flight

[EX Q]: customer: Hi. 
 agent: Hello. How can I aid you? 
 customer: I am Samuel Miller. I am planning to travel from LAS to DFW, can you help in booking a flight? 
 agent: Sure, We are here to help you. How much can you pay for buying your ticket? 
 customer: My budget is only 200. 
 agent: On what dates you want me to book the ticket? 
 customer: My travelling dates are 10/25 to 10/27. 
 agent: Thank you for your details, please hold a moment let me search a flight for you. 
 customer: Ok. 
 agent: We are unable to provide flight in between your journey routes due to some technical up-gradation at destination airport. 
 customer: That's ok, thank you. 
 agent: Thank you for contacting us.
[EX A]:
no_flight