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

Ex Input:
customer: Hello. 
 agent: Hello. How can I aid you? 
 customer: Can you aid me in booking a flight ticket from MSP to HOU? 
 agent: Sure, may I know about the planned travel dates? 
 customer: I am planning to start on Sep 29th and return back on Oct 1st. 
 agent: Do you have any specifications? 
 customer: I prefer to travel in economy class. 
 agent: May I know about the connection limit? 
 customer: Make sure that connection limit is 1. 
 agent: Please provide me the name. 
 customer: I am Anna Thomas. 
 agent: Here, there are no flights are available for your desired intent. 
 customer: No issues. Thank you for checking. 
 agent: Thank you for reaching us.

Ex Output:
no_flight


Ex Input:
customer: Hello,. 
 agent: Hello, How may I assist you today? 
 customer: My friends house warming function was postponed due to under construction. So I want to cancel my recent reservation. 
 agent: Sure, May I know your name please? 
 customer: Sure. I am Virginia Turner. 
 agent: Ok, please wait for a minute, I will check and let you know. 
 customer: sure. 
 agent: Thanks for your patience. Unfortunately, there is no reservation found with your name. 
 customer: Ok, no problem. 
 agent: Thank you for approaching us. 
 customer: Thank you for assisting me.

Ex Output:
no_reservation


Ex Input:
customer: Hi. 
 agent: Hello, how may I be at your service today? 
 customer: Please help me to cancel my recent reservation. 
 agent: May I know your name please? 
 customer: Jonathan Harris. 
 agent: Sure, please wait for a moment. 
 customer: Sure. 
 agent: Sorry, there is no reservation matching with your name in our portal. 
 customer: Thank you for your information. 
 agent: Thank you for reaching us.

Ex Output:
no_reservation