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

Input: Consider Input: customer: Hi,. 
 agent: Hello, may I know your name please? 
 customer: I am George Lopez. 
 agent: How may I help you? 
 customer: I am planning to visit a Funfair exhibition in Houston, could you please help me in booking my flight ticket? 
 agent: Sure, please provide your travel dates? 
 customer: I want to fly on 06/30 and return on 07/02. 
 agent: Please provide your journey points? 
 customer: Source and destination is from OAK - HOU. I would request you kindly, To find a flight with price limit as 200. And connections limit as 1. 
 agent: Thank you for providing your details. Please wait for a while, I will check and revert you. 
 customer: Ok. 
 agent: Sorry there were no flights founds matching with your requirements. 
 customer: Ok, no issues. 
 agent: Thank you for reaching us. 
 customer: Thanks for the information. 
 agent: Have a good day.

Output: no_flight


Input: Consider Input: customer: Hello. 
 agent: Hello. 
 customer: I am Jennifer Jackson. 
 agent: How may I aid you? 
 customer: I am planning to attend music concert at AUS, can you please help me with booking a flight ticket from PHL? 
 agent: Sure, I am here to help you in booking process. Could you please provide me your journey dates? 
 customer: Sure, I would like to take off on Sept 5 and return on Sept 7. 
 agent: May I know your connection limit? 
 customer: Yes, make sure that the connection limit is 1. 
 agent: Please wait for a moment. 
 customer: Sure, take your time. 
 agent: Based on your details, there is a flight with 1 connection in AA airlines and price is 100. Can I proceed? 
 customer: Yes, please proceed with the booking. 
 agent: Ok, your ticket is reserved with the flight 1025. 
 customer: Thank you for your help. 
 agent: Thank you for choosing us. 
 customer: You are welcome.

Output: book


Input: Consider Input: customer: Hello. 
 agent: Hello. How can I help you? 
 customer: Can you aid me in booking a flight ticket from HOU to IAH? 
 agent: Sure, I will help you. Can you please share me your travelling dates? 
 customer: Sure, I would like to go on July 19th and return back on July 21st. 
 agent: Ok, please share me your name. 
 customer: Myself Stephen Collins. 
 agent: Ok, do you have any connection limit? 
 customer: Make sure it is a single connecting flight. 
 agent: Ok, do you have any other specifications? 
 customer: Make sure it is a normal-cost airline. 
 agent: Here, I found a flight for you with single connection and ticket fare is 200 in economy class. Shall I proceed for booking? 
 customer: Ok, please proceed for further. 
 agent: Your ticket is booked with flight number 1011 and airline is Delta. 
 customer: Thank you for booking. 
 agent: Welcome, have a safe flight.
Output: book