Hi. I am Dennis Collins.
user
Hello. How can I assist you?
assistant
I need to amend my reservation, can you help me out please?
user
Ok, sure. I will amend your reservation. Can you please wait for a while I will check and let you know.
assistant
Sure, take your own time.
user
Sorry, no reservation found on your name to change.
assistant
That's ok, no problem. Thank you for your information.
user
Most welcome.
assistant