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

[Q]: customer: Hello. 
 agent: Hello. 
 customer: I am Angela Baker. 
 agent: How may I aid you today? 
 customer: Can you find a flight from HOU to SEA, to visit the Chihuly Garden and Glass. 
 agent: Sure, I am here to help you out. Please provide me your trip dates. 
 customer: Help me with booking ticket from 08/20 and 08/22. 
 agent: Sure  Angela Baker, there is a flight with 1 stop and price is 100 in economy class, can I proceed with it? 
 customer: Yes, please. 
 agent: Your ticket has need with 1014 flight in Delta airlines. 
 customer: Thanks for your help. 
 agent: Thank you for reaching us.
[A]: book


[Q]: customer: Hello. 
 agent: Hello. How may I assist you today? 
 customer: I have to change my reservation due to my planned my trip got postponed. So please help me with that. 
 agent: Sure, may I know your name? 
 customer: Thank you. Please check my reservation with my name Rebecca Gonzalez. 
 agent: Please wait a moment. 
 customer: Sure, take your time. 
 agent: Sorry, there are no active reservations to change your trip. 
 customer: Oh! It may not be booked properly. Anyway, thank you for your time. 
 agent: Thank you for reaching our service. 
 customer: Most welcome.
[A]: no_reservation


[Q]: customer: Hello. 
 agent: Hello, how can I support you now? 
 customer: I am Kimberly Roberts. I want to book a ticket from JFK to OAK to attend seminar, can you help me in booking? 
 agent: Sure, please share me your planned journey dates? 
 customer: I am departing on Aug 31 and return on Sep 02. 
 agent: Please mention your connection limit? 
 customer: I need a flight with connection limit 1. 
 agent: May I know your depart and return flight timing? 
 customer: I want to return time in morning time. 
 agent: Do you have any other requirement? 
 customer: I do not have any other specifications. 
 agent: Thank you for the flight details, sorry there is no flight available on your given journey route. 
 customer: That's ok, thank you for your information. 
 agent: Thank you for visiting us, we hope see you again.
[A]:
no_flight