Hello.
user
Hello, how may I oblige you today?
assistant
Elizabeth King here, actually I made a earlier reservation to go for a trip with my friends, but heavy work load in office I want to change my reservation. Can you help me?
user
Sure, I am here to help you.
assistant
Thank you.
user
Please stand by I will get back to you.
assistant
Ok.
user
Thank you for waiting, sorry to say no reservation found on your name.
assistant
No worries at all, thank you for your information.
user
Thank you for reaching us, have  a nice day.
assistant