Teacher: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
Teacher: Now, understand the problem? Solve this instance: customer: Hello. 
 agent: Hello. How may I help you today? 
 customer: I need to book my ticket from CLT to OAK. Can you please help me with booking? 
 agent: Sure, I am here to help you with that. Can I know your planned trip dates? 
 customer: My planned trip dates are Sept 14 and Sept 16. 
 agent: May I know your good name? 
 customer: Sure, Kathleen Roberts. 
 agent: Is there any other requirements? 
 customer: I need a connecting flight in my journey. 
 agent: Please wait for a minute. 
 customer: Sure, I will wait for your response. 
 agent: The United airlines are providing a flight having a connection limit 1 and the ticket fare of 100. Can I proceed with the ticket booking? 
 customer: Yes, please proceed with that ticket booking. 
 agent: Your flight ticket is confirmed in an economy class and the flight number 1003. 
 customer: Thank you for helping me. 
 agent: Thank you for reaching us. Have a safe journey.
Student:
book