Hi.
user
Hello, how may I be of your help?
assistant
I am Dennis Miller. I want to change an existing reservation due to sudden change in my trip. Can you help me?
user
Sure, give me sometime to check and get back to you.
assistant
Ok.
user
Thank you for your time. Unfortunately there is no reservation found by your name.
assistant
No issue. Thank you for your service.
user
Thank you for choosing us.
assistant