Hello.
Hello. How can I help you?
As my manager did not approve my leave, I would like to change my recent reservation. Can you aid me with this?
Sure, I will help you to change your reservation.
Thank you.
Ok, please mention your name.
Myself David Brown.
Sorry, no reservation found on your name to change your reservation.
That's ok, thank you for checking.
Welcome, have a nice day.