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

customer: Hello. 
 agent: Hello. 
 customer: I am Raymond King. 
 agent: How can I aid you today? 
 customer: Can you please help me in booking my flight ticket from AUS to DCA? 
 agent: Sure, I am here to help you. Could you please help me with your travelling dates? 
 customer: Ok, my travelling dates are 03/10 and 03/12. 
 agent: May I know your lay by's? 
 customer: I need connecting flight. 
 agent: Ok, please wait for a while. There is a UA 1013 airline with fare of 100 and a halt in between the journey. 
 customer: Ok, sure. 
 agent: Your booking has been confirmed on name of Raymond King. 
 customer: Thank you. 
 agent: Thank you for approaching us, have a nice day.
book

customer: HI. 
 agent: Hello. What help that I can assist you? 
 customer: I want to change an existing  reservation due to sudden change in my trip. Can you help me? 
 agent: Sure, I can help you and can you please mention your name for checking purpose? 
 customer: Paul Collins. 
 agent: Please wait for a moment. 
 customer: Ok. 
 agent: Thank you for waiting, I have checked in reservation list to change your ticket but could not find any reservation with your name. 
 customer: No issue. Thank you. 
 agent: Thank you for reaching us, have a nice day.
no_reservation

customer: Hello, I am Sharon Green. 
 agent: Hello, how may I help you? 
 customer: I would like to celebrate Steampunk festivals with my family at New York, NY - LGA. Will you help me to book a connecting flight? 
 agent: Sure, please share your journey dates? 
 customer: Ok, my journey dates are 10/24 and 10/26. 
 agent: May I know your origin airport code? 
 customer: Sure, Phoenix, PHX is my origin airport code. 
 agent: Do you need any price limit? 
 customer: Yes, I can spend up to 500. 
 agent: Sorry, no flights found on your given dates. 
 customer: Ok, no worries at all. 
 agent: Thank you for choosing us. 
 customer: Thank you.
no_flight