Hi,.
Hello, how may I be your helping hand today?
I have planned for a trip and made a reservation yesterday. But now some friends have a problem to visit the trip. So, I want to change my reservation. Can you help me with that?
Sure, I can help you. May I know your name to change your reservation?
Thank you. Sure, Helen Harris is my name.
Sorry, we did not find any reservation on your name to change.
Ok, Not a problem. Thanks for your kind information.
Thank you for approaching us.