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, how may I serve you at this moment? 
 customer: Myself Kenneth Parker, I have to attend my friend marriage at Charlotte. Can you please help me in reserving the ticket from MCO to CLT? 
 agent: Sure, I will help you. Please send your travelling dates. 
 customer: I am willing to leave on Oct 02 and again I will rertrieve on Oct 04. 
 agent: Do you have any limitations? 
 customer: I mostly prefer for single connection. Can you please check for this? 
 agent: There is a direct flight available with AA airline, shall I book it? 
 customer: Yes, please go ahead and reserve the ticket. 
 agent: Your booking is done with flight number 1026. Happy journey. 
 customer: Thank you very much for reserving the ticket. 
 agent: You are welcome, have a nice day.
book

customer: Hello. 
 agent: Hello, how may I guide you today? 
 customer: I am Stephen Turner, can you assist me to book a flight from DEN to ATL? 
 agent: Sure, could you please share me with your dates of trip? 
 customer: Ok, my travel date is on 01/07 from Denver and return date is on 01/09. 
 agent: Ok, please hold on for a mean while. The flight with the connecting flight of fare 100 has found, shall I book this ticket booking? 
 customer: Ok, please the book. 
 agent: The flight with the Delta airline and flight number is 1009 has been confirmed. 
 customer: Thank you for helping me with the booking. 
 agent: You are welcome and have a happy journey.
book

customer: Hello. 
 agent: Hello. 
 customer: Thomas Thomas here. 
 agent: How can I serve you? 
 customer: I would like to visit World of Coca-Cola. Can you please help me for booking the flight ticket? 
 agent: Sure, I can help you. Please share your travelling dates. 
 customer: My departure date is 12/27 and return date is 12/29. 
 agent: Can I know your travelling airport codes? 
 customer: My airport codes are from DC-IAD to GA-ATL. Make sure my connections limit is 1. 
 agent: Please wait a while. 
 customer: Ok, take your time. 
 agent: Thanks for your time. We found a Southwest airline, flight number:1003 and the price is 300. 
 customer: Please proceed for booking the ticket. 
 agent: Your flight ticket has been reserved. 
 customer: Thank you for helping me. 
 agent: Thank you for picking us.
book