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

customer: Hi. 
 agent: Hello. How can I guide you now? 
 customer: I am Samantha King and I want to book a flight ticket under 200. 
 agent: Ok. 
 customer: Can you help me to book a flight ticket? 
 agent: Sure. May I know your journey dates? 
 customer: My travelling dates are 12/14 and 12/16. 
 agent: And let me know your flight codes. 
 customer: My airport codes are from DC-DCA to NY-EWR. 
 agent: Thanks for being patience. You have Hawaiian airline of price 100 with 1 connection. 
 customer: I need a direct flight. 
 agent: No, we do not have direct flight. 
 customer: NO issue. Thank you for your response. 
 agent: Thanks for choosing us.
no_reservation