Teacher: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
Teacher: Now, understand the problem? Solve this instance: customer: Hello,. I am Ronald Parker. 
 agent: Hello, how may I aid you today? 
 customer:  I am planning to visit a Funfair exhibition in New York, could you please help me in booking my flight ticket? 
 agent: Sure, can you please provide your airport locations? 
 customer:  I need to leave from my nearest airport Las Vegas, LAS to reach New York, JFK. 
 agent: Kindly mention your assign journey dates? 
 customer: I want to travel on 02/09, and need to catch return flight on 02/11. 
 agent: Do you have any other restrictions to be met? 
 customer: Yes, I need a connection in between my journey. 
 agent: Ok, please wait a moment. 
 customer: Sure. 
 agent: Thank you for your time, sorry, no flights available on that route. 
 customer: Ok, no issues. Thanks for the information. 
 agent: Thank you for approaching us.
Student:
no_flight