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
One example is below.
Q: 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.
A: no_reservation
Rationale: 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: Hello. I am Gregory Smith. 
 agent: Hello, how can I help you today? 
 customer: Will you please assist me in booking a flight ticket from IAH to LGA as I am planning to visit Central Park at New York? 
 agent: Sure, when are you planning to travel? 
 customer: I would like to depart on June 06 and return on June 08. 
 agent: Do you need a connecting flight? 
 customer: Yes, I need a flight with single connection. 
 agent: Do you need a business class or a economy class? 
 customer: I am comfortable with any class. 
 agent: Do you have any preferences with the timing? 
 customer: My depart time should be morning. 
 agent: Thank you for your details, there are no flights found with the given details. 
 customer: Ok, no problem. Thank you for your response. 
 agent: Thank you for opting us.
A:
no_flight