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, we are glad to have you as a customer, how can I assist you today? 
 customer: I want to book a ticket from NC - CLT to FL - MCO to plan my husband's birthday. My travelling dates will be on 07/17 to 07/19. 
 agent: Sure, can I have your name to proceed further? 
 customer: Emily Harris. 
 agent: Ok, please wait for a while, let me check with the airlines and let you know. 
 customer: Sure. 
 agent: Thanks for holding on, we are glad to inform you that a flight has found on that day. Details are as follows airline-Southwest flight number-1002 connections-1 and price limit is 100. Shall I proceed to booking? 
 customer: Yes, you can. 
 agent: Sure, your dates are reserved. 
 customer: Thank you. 
 agent: Pleasure to serve you, have a safe journey.
Solution:
book