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

[EX Q]: customer: Hello. 
 agent: Hello, how best I can aid you at this moment? 
 customer: We are going to Washington, but first we should make a plane reservation. Can you please help me with this? 
 agent: Sure, I would like to make a reservation to Washington. 
 customer: Thank you for accepting my request. 
 agent: Could you please help me with your travelling airport codes? 
 customer: Sure, my airport codes are IAD - DCA. 
 agent: At what class, would you like to prefer to travel? 
 customer: I am fine with any class. 
 agent: Do you have any specific time for your journey? 
 customer: Yes, I would like to depart in afternoon time. 
 agent: When you are willing to travel to reach your destination? 
 customer: I have scheduled my trip dates on Nov 9th to 11th. 
 agent: Ok, Do you prefer to travel in a major airlines? 
 customer: I am comfortable with any airline. 
 agent: Thank you for sharing all the required details, please help me with your name. So, I can check the availability of flights. 
 customer: Jack Perez is my name. 
 agent: Please wait for a moment, I will inform you about the flight details as soon as possible. 
 customer: Ok, sure. 
 agent: Thanks for waiting, Jack Perez. 
 customer: Ok. 
 agent: Sorry for the inconvenience, there were no flights moving to your location due to sold out of tickets. 
 customer: It's sad to hear, but no issues at all. Thank you for the best service. 
 agent: Thank you for consulting our chat service. Hope we serve you again.
[EX A]: no_flight

[EX Q]: customer: Hello. 
 agent: Hello, how can I help you today? 
 customer: Can you please help me to book a flight ticket from MCO to LAX? 
 agent: Sure, please share your planned travel dates? 
 customer: My travel dates are Oct 10 to Oct 12. 
 agent: Can I have your name please? 
 customer: My name is Dennis Hernandez. 
 agent: Let me know your connection limit? 
 customer: I need a flight with single connection. 
 agent: Any other requirements to be met? 
 customer: I prefer business class. Sorry, I need a direct flight. 
 agent: Sorry, no flights found with your given details. 
 customer: No problem, thanks for your information. 
 agent: Thank you for reaching us.
[EX A]: no_flight

[EX Q]: customer: Hello. 
 agent: Hello. 
 customer: Myself Brandon Parker. 
 agent: How can I assist you? 
 customer: Please help me to cancel my recent booking. 
 agent: Sure, i can help you with that. Please wait for a while. 
 customer: Sure, I will wait. 
 agent: There is no active reservation found under your name to do cancellation. 
 customer: That's ok. Thank you. 
 agent: Thank you for choosing us.
[EX A]:
no_reservation