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, what can I do for you today? 
 customer: My name is Karen Hill and I want to book the flight ticket from LAS to EWR. Can you please help me? 
 agent: Sure, may I know your travel dates? 
 customer: My travel dates are May 17 and May 19. 
 agent: Let me know your class preference? 
 customer: I am comfortable with any class. 
 agent: Do you have any other requirements to be met? 
 customer: I need a single connection flight. 
 agent: Sorry, no flights found on your travel dates. 
 customer: Ok, thank you for the information. 
 agent: Thank you for contacting us.
[EX A]: no_flight

[EX Q]: customer: Hi. 
 agent: Hello. How can I assist you? 
 customer: Will you help me in booking a ticket with the name of Samantha Lewis under the price limit of 200? 
 agent: Ok, may i know your travel dates? 
 customer: I need to do some project work in Botanical Garden on 01/06. After the completion of this, I have to return on 01/08. 
 agent:  Help me with your journey points? 
 customer: Journey points are Los Angeles, LAX and PHL. 
 agent: Ok, please wait. 
 customer: Sure. 
 agent:  Sorry, no flights are available on your travel dates. 
 customer: Ok, thank you. 
 agent:  Thank you for availing us.
[EX A]: no_flight

[EX Q]: customer: Hi. 
 agent: Hello, how can I aid you today? 
 customer: Could you please help me to book a flight ticket from DEN to PHX? 
 agent: Please provide your journey dates. 
 customer: My journey dates are Apr 03 and Apr 05. 
 agent: Do you need any connection limit? 
 customer: I need a direct flight. 
 agent: Do you have any other specifications? 
 customer: No. 
 agent: May I know your name? 
 customer: I am Joseph Gonzalez. 
 agent: There are no flights available on your routes. 
 customer: Not a problem, thank you for the information. 
 agent: Thank you for opting us.
[EX A]:
no_flight