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 may I assist you? 
 customer: I am Laura Carter here, I want to reserve my ticket from BOS to PHL, can you please help me in booking? 
 agent: May I know your trip dates? 
 customer: Sure, my planned dates of journey are from Sep, 01 to Sep, 03. 
 agent: May I know your connection limit? 
 customer: Yes, I need a connecting flight. 
 agent: Is there any class preference? 
 customer: Yes, I need a business class. 
 agent: Ok, can you share your name to proceed further? 
 customer: I have mentioned. 
 agent: Ok, do you have any other specifications? 
 customer: No. 
 agent: Ok, please wait. 
 customer: Sure, I will wait. 
 agent: Sorry, there are no flights found with your required details. 
 customer: Ok, no problem. Anyways, thank you for your service. 
 agent: Thank you for reaching us.
Example Output: no_flight

Example Input: customer: Hello. 
 agent: Hello, how may I help you? 
 customer: I planned to meet my friend in HOU, can you please help me to book a flight ticket from AUS? 
 agent: Sure, please share your journey dates? 
 customer: I prefer to travel on Sep 24 and Sep 26. 
 agent: Do you have any specifications? 
 customer: I would like to return back in afternoon. 
 agent: Is there any class preference? 
 customer: No. 
 agent: May I know your good name? 
 customer: I am Jason Garcia. 
 agent: Sorry, no flights found on your given details. 
 customer: Ok, no problem. Thank you for your information. 
 agent: Thank you for choosing us.
Example Output: no_flight

Example Input: customer: Hi. 
 agent: Hello, how can I aid you today? 
 customer: I need to amend an existing reservation, can you please help me? 
 agent: Sure, may I know your good name? 
 customer: Rebecca Thomas here. 
 agent: We found a reservation on your name, please share your trip dates. 
 customer: Sure, my planned travelling dates are May 07 and 09 respectively. 
 agent: May I know your airport codes? 
 customer: Sure, my airports codes are LGA and MCO respectively. 
 agent: Do you need a connecting flight? 
 customer: Yes, flight has to be with a single connection. 
 agent: Do you have any other specifications? 
 customer: No, thank you for asking. 
 agent: Thank you for your details, we found a connecting flight 1007 in class economy which is in Jet Blue airline. Shall I proceed? 
 customer: Please proceed for booking. 
 agent: Your ticket has been confirmed. 
 customer: Thank you for your service. 
 agent: Thank you.
Example Output:
book