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