Detailed Instructions: 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
Problem:customer: Hello. 
 agent: Hello, how may I aid you? 
 customer: Can you assist me in booking my flight ticket from DTW to MCO? 
 agent: Sure, when are you planning to travel? 
 customer: My trip dates will be Nov 7th to Nov 9th. 
 agent: May I know your name please? 
 customer: I am Jonathan Lewis. 
 agent: Do you have any preferences? 
 customer: My depart time should be in the evening. 
 agent: Sorry, no flights found in your desired routes. 
 customer: Its ok, thank you. 
 agent: Thank you for reaching us.
Solution:
no_flight