Hello.
Hello,.
I am Lisa Roberts.
How can I amend you today?
 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. Will you help me in changing my reservation?
Sure, we are here to aid you.
Thank you.
Please, stay online.
Sure.
Thanks for your time, there is no reservation found on your name Lisa Roberts.
It's ok, thank you for the information.
Thank you for availing us.