Hello, I am Alexander Adams.
Hello, how can I aid you?
I want to change an existing reservation due to my exams got postponed. Can you please help me with this?
Sure. Please wait a moment.
Ok.
  We found a reservation in your name. could you please provide your journey details?
Sure, my origin is from JFK and depart is on 09/15. My destination is to Oakland, CA - OAK. I intend to return on 09/17.
 We found a flight with Frontier airlines price limit is 100. Flight number is 1005 with single connection. Shall I proceed for booking?
You may proceed.
Booking your ticket has been confirmed.
Thank you for your response.
Have a safe journey.