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: Hello, I am Ryan Anderson. 
 agent: Hello, how may I aid you at this moment? 
 customer: I would like to go to a beach in Washington, so could you please book a ticket for me? 
 agent: Can I have your journey dates? 
 customer: I would like to go on 02/03 and return back on 02/05. 
 agent: Please send your nearby airport codes. 
 customer: My airport codes are PHX and DCA. 
 agent: Please wait for a moment. 
 customer: Ok, ensure it is a single connecting flight. 
 agent: Sorry, no flights are running on those dates. 
 customer: That's ok, thank you for checking. 
 agent: Thank you for reaching us. 
 customer: Welcome.

A: no_flight
****
Q: customer: Hello. 
 agent: Hello, how may I oblige you today? 
 customer: My name is Helen Young, I want to book a flight from TX-HOU to Denver, CO-DEN to meet my sister. Can you book a connecting flight for me? 
 agent: When you are willing to travel? 
 customer: I will fly on 11/30 and return on 12/02. 
 agent: Please wait for a moment. 
 customer: Sure. 
 agent: We found 1002 Southwest airlines with single connection with price 100. 
 customer: Please proceed with booking. 
 agent: Your, booking has been confirmed. 
 customer: Thank you for helping me with booking. 
 agent: Thank you for reaching us.

A: book
****
Q: customer: Hello, I am Jason Wilson. 
 agent: Hello. How can I aid you? 
 customer: I am planning to visit the Reedy Creek Park in Charlotte, could you please help me in booking a flight ticket from Washington? 
 agent: Sure, I will help you. May I know your airport codes? 
 customer: My airport codes are DC - DCA, NC - CLT. 
 agent: Can you share me your travelling dates? 
 customer: I want to fly on 05/09 and return on 05/11. 
 agent: Do you have any preferences? 
 customer: Yes, I need a halt in between my journey. 
 agent: There is a flight 1025 in Spirit airline and price 200 with a connection. Shall I go through booking? 
 customer: You can proceed to booking. 
 agent: Sure, Your reservation has been done. 
 customer: Thank you for your service. 
 agent: Thank you.

A:
book
****