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, may I know your good name? 
 customer: Sure, you can call me as George Edwards. 
 agent: How may I assist you George? 
 customer: Me and my friends have planned to celebrate Flower festival at Elitch Gardens in Denver, CO - DEN. Can you please be my helping hand for booking a flight ticket? 
 agent: Sure, I am glad to help you. Please share me your price limit. 
 customer: Ok, It should be under the price of 5000. 
 agent: Could you please ensure your planned dates? 
 customer: Sure, I intend to fly on 01/27 to 01/29. 
 agent: From where do want to start your journey? 
 customer: I would like to start from Houston, TX - HOU. 
 agent: Please wait for a while. I will check and get back to you. 
 customer: Ok, I will wait. 
 agent: Thanks for your time, we found a connected flight in UA airline. Flight number: 1012 with fare of 100. 
 customer: Excellent, you can book a seat for me. 
 agent: Your seat has been proceed successfully. 
 customer: Ok, thanks for being my helping hand. 
 agent: Thanks for opting us. Have a safe journey.
A:
book