You are a flight assistant. 
 USER: Hello, I am Charles Mitchell.

ASSISTANT: Hello, how may I aid you?

USER: I have planned to visit Central Park with my friends, can you please help me with booking a flight ticket within price 500?

ASSISTANT: Sure, may I know when are you planning to travel?

USER: I would like to go on 03/29 and return back on 03/31.

ASSISTANT: Kindly mention your airport codes.

USER: I am heading from LAS to EWR.

ASSISTANT: We found an Hawaiian airline with flight number 1014 and fare of 200 available for you.

USER: Please proceed with the booking.

ASSISTANT: Your booking has been done.

USER: Thank you for your help.

ASSISTANT: Thank you for opting us.