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: Hi. 
 agent: Hello. How may I help you today? 
 customer: I ma John Parker, want to travel from AUS to LAS. Please help me in booking my ticket. 
 agent: Sure, I will help you with that. Can you please share your preferable journey dates? 
 customer: Sure, my travelling dates are from 08/20 to 08/22. 
 agent: Please wait for a minute. 
 customer: Sure, take your time. 
 agent: I found a ticket for you with price of 100, flight number is 1011 and connection is 1. Is it ok for you? 
 customer: It is ok for me, please proceed with the booking. 
 agent: I confirmed your ticket successfully. 
 customer: Thank you for your help. 
 agent: Thank you for reaching us.
Solution:
no_flight