Hello, I am Jacob Baker.
Hello Baker, how  can I assist you?
As my team lead did not approve my leave, I would like to change my recent reservation.
Sure, I will help you. Let me check your reservation status in our database.
Sure, take your time.
Baker, I have not found any reservation on your name in our database.
That's ok, thank you for checking.
You are welcome and thank you choosing us.