Hello, I am John Hernandez.
Hello. How may I assist you today?
As my manager did not approve my leave, I would like to change my recent reservation. Can you aid me with this?
Sure, we are here to help you.
Thank you.
Please wait a moment to check the reservation status.
Sure, take your time.
 I have checked in reservation list to change your ticket, but could not find any reservation with your name.
That's ok, thank you for checking.
Thank you for approaching us.