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 Susan Gonzalez. 
 agent: Hello, how can I help you? 
 customer: I need to book a flight ticket from Seattle to meet my grandparents after a long time in Washington. Can you please help me in booking? 
 agent: Sure, may I know your planned travel dates? 
 customer: My depart is on 03/17 and arrival on 03/19. 
 agent: Please share me your source and destination codes. 
 customer: My source code is WA-SEA and destination code is DC-IAD. 
 agent: May I know your price limit? 
 customer: I can spend up to 5000. 
 agent: Please wait for a moment. 
 customer: Ok. 
 agent: Thanks for waiting, sorry to say that, no flights were found with your details. 
 customer: Ok, no issue. 
 agent: Thank you for opting us. 
 customer: Thank you for your support.

A: no_flight
****
Q: customer: Hello. 
 agent: Hello, how can I help you today? 
 customer: Please book a ticket from ORD to PHL to attend my sister wedding. 
 agent: Sure, please share your planned travel dates? 
 customer: My travelling dates are Mar 23 and Mar 25. 
 agent: Do you have any connection limit? 
 customer: I am comfortable with any connection. 
 agent: Can I have your name please? 
 customer: Sure, I am Laura Hernandez. 
 agent: Any other preferences? 
 customer: No. 
 agent: Southwest airline flight 1011 available with connection limit 1 and fare is 100, shall I confirm this economy class flight? 
 customer: Ok, please proceed. 
 agent: Ok, your ticket has been processed. 
 customer: Thank you. 
 agent: Thank you for opting us.

A: book
****
Q: customer: Hi. 
 agent: Hello. What can I do for you today? 
 customer: I am planning to change my reservation, can you help me out with that? 
 agent: Sure, I am glad you help you with that. 
 customer: Thank you. 
 agent: Could you provide me your name? 
 customer: My name is Lisa Miller. 
 agent: Ok, wait for a minute. 
 customer: Ok. 
 agent: Sorry to say that, there is no active reservation found on your name in our database. 
 customer: NO issues, thank you for your time. 
 agent: Thank you for reaching us.

A:
no_reservation
****