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. 
 agent: Hello. How may I assist you today? 
 customer: I would like to book a flight on the route from MSP - OAK, can you please help me today? 
 agent: Sure, please provide me your travelling. 
 customer: I will be travelling on the dates from 06/06 to 06/08. 
 agent: Delta airline is providing flight for you with price 200. Shall I proceed? 
 customer: Ok, please book it if the price is within 5000. 
 agent: May I know your name to proceed further? 
 customer: My name is Emma Harris. 
 agent: Your ticket has been booked with your name. 
 customer: Thank you for helping me out. 
 agent: It's my pleasure.

A: book
****
Q: customer: Hi. 
 agent: Hello, how may I guide you? 
 customer: I am Patricia Brown here, I want to reserve my ticket from LAS to ATL, can you please help me? 
 agent: Sure, can I know your preferable dates? 
 customer: Sure, my planned dates of journey are from 11/26 to 11/28. 
 agent: I found a direct flight 1002 of Frontier airlines matches with your preferences, can I proceed? 
 customer: Ok, you can book it. 
 agent: Your ticket is booked. 
 customer: Thank you for your help in booking my ticket. 
 agent: Thank you, have a good day.

A: book
****
Q: customer: Hello. 
 agent: Hello. How can I  help you? 
 customer: Could you help me in booking a flight ticket from IAD to JFK? 
 agent: Your travelling dates pleas? 
 customer: My departure day is Mar 07, return day is Mar 09. 
 agent: Do you have any specifications? 
 customer: I want a economy class flight ticket. And I want a flight with one connection. 
 agent: May I know your name please? 
 customer: My name is Emma Moore. 
 agent: I am sorry no flights found on your route. 
 customer: Not an issue, thank you. 
 agent: Thank you for choosing us.

A:
no_flight
****