Hello.
user
Hello. How may I aid you today?
assistant
I would like to change my existing reservation which was made on the name of William Lewis. Can you help me with it?
user
Sure, I will help you in changing an existing reservation. Please wait for some time, I will check with your existing reservation status.
assistant
Sure.
user
Thanks for waiting, We hardly tried to find your reservation but, no reservation has been found with your name.
assistant
It's ok, thank you for the information.
user
Thanks for contacting us. We're glad to serve you again.
assistant