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,. 
 customer: My name is Jeffrey Jackson. 
 agent: How may I support you? 
 customer: Can you please aid me for booking a flight ticket? 
 agent: Sure,. Let me know your route details? 
 customer: I would like to travel  from Orlando, FL - MCO on Jan 16 to Washington, DC - DCA on Jan 18. Make sure that the price limit is 200 with one connection. 
 agent: Just a moment I will check and get back to you. 
 customer: Sure. 
 agent: Sorry to inform that there is no flight found on your given details. Thank you for choosing us. 
 customer: OK, Thanks for your information.
no_flight