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, how may I be at your service today? 
 customer: I would like to travel from MCO to DEN as a business trip, can you do the reservation? 
 agent: Sure, I will help you in booking the ticket. May I know your travelling dates please? 
 customer: My trip dates are 02/21 and 02/23. 
 agent: Do you have any other specifications? 
 customer: I need break in my journey. 
 agent: Please help me with your name for booking. 
 customer: Charles Wilson here. 
 agent: According to your information, I have found a flight with single stop over in your journey with a minimum fare of 100 with flight number 1017. Shall I proceed with this flight? 
 customer: Go ahead. 
 agent: Your booking is done. 
 customer: Thank you so much. 
 agent: Most welcome.
[A]: book


[Q]: customer: Hello. 
 agent: Hello, how best can I guide you for the day? 
 customer: I need you to cancel my recently booked flight ticket. 
 agent: Sure, please hold a moment. 
 customer: Ok, I will. 
 agent: We need your good name to check the reservation. 
 customer: Ok, my name is Deborah Robinson. 
 agent: Thank you for sharing your good name, we found a reservation on your name and it has been cancelled. 
 customer: Great! Thanks for your help. 
 agent: Thank you.
[A]: cancel


[Q]: customer: Hello. 
 agent: Hello, how can I help you? 
 customer: I am planning to visit Denver, will you help me in booking the flight ticket from JFK to DEN? 
 agent: May I know your desired travel dates please? 
 customer: My travelling dates are Apr 12 and Apr 14. 
 agent: May I know your name please? 
 customer: Myself Jack Robinson. 
 agent: Can I know your connection limit please? 
 customer: I need a connecting flight. 
 agent: Sorry to say, there is no flight on your desired travel dates. 
 customer: Can you please check with my  depart time it must be in morning. 
 agent: There is no flight on your preferred travel dates. 
 customer: Ok, not an issue. Thank you for your information. 
 agent: Thank you for opting us.
[A]:
no_flight