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: Hi. 
 agent: Hello, how may I render you? 
 customer: I want to book a ticket from BOS to JFK, can you help me? 
 agent: Sure, may I know your journey dates? 
 customer: My travel dates are 05/07 and 05/09. 
 agent: Do you have any specification? 
 customer: I need a flight with connection 1. 
 agent: May I know your good name for further process? 
 customer: Myself Lisa Edwards. 
 agent: Thank you for sharing your journey details, please hold on. You have a flight with airline Hawaiian and flight number is 1014 with 1 connection and price is 200. 
 customer: Sure. You can book it. 
 agent: Your reservation is done. 
 customer: Thank you for booking. 
 agent: Thank you for choosing us, have a nice day.

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. 
 customer: Myself Dorothy Williams. 
 agent: How may I help you out? 
 customer: I am planning to travel Dallas this week day. Can you please help me in booking the ticket from SFO to DFW? 
 agent: Sure, I will help you in booking the ticket. May I know your travelling dates please? 
 customer: I will drop-off 01/09 and gain I will retrieve on 01/11. 
 agent: Do you have connection limit? 
 customer: I prefer for direct flight. 
 agent: Sorry, there are no flights found in our database. 
 customer: Not an issue, anyway thank you very much for your kind information. 
 agent: Thank you for choosing us.

A:
no_flight
****