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

Example input: customer: Hi. 
 agent: Hello. How can I help you? 
 customer: I would like to change my existing reservation as my plan to go for a holiday trip got postponed. Can you please help me with this? 
 agent: Sure, may I know your name please? 
 customer: My name is Anthony Phillips. 
 agent: Please wait a moment. 
 customer: Sure. 
 agent: Unfortunately there is no reservation found with your given name. 
 customer: Not a problem, thank you for checking. 
 agent: Thank you for choosing us.
Example output: no_reservation
Example explanation: Here the customer has not asked for any booking, he just wanted to update his already booked flight, so the status would be no_reservation
Q: customer: Hi. 
 agent: Hello, how may I assist you today? 
 customer: I am planning to visit the Daniel Stowe Botanical Garden at Charlotte. Can you please help me in booking a ticket? 
 agent: Sure, can you share your travel dates please? 
 customer: My travel dates are June 23 and June 25. 
 agent: May I know your specific airport codes? 
 customer: My journey airport codes are LAX and CLT. 
 agent: Do you have any connection limit? 
 customer: Yes, I am looking for a flight with one connection. 
 agent: Please share me your good name to proceed for further. 
 customer: My name is Timothy Rodriguez. 
 agent: Do you have any other specifications? 
 customer: No. 
 agent: We found a connecting flight 1020 in United Airlines with cost 300. Shall I proceed for booking with economy class? 
 customer: Yes, proceed. 
 agent: Your ticket has been reserved. 
 customer: Thank you for your help. 
 agent: Thank you for supporting us.
A:
book