Hi.
user
Hello, how can I serve you today?
assistant
I am Brandon Evans. I want to change an existing reservation due to sudden change in my trip. Can you help out with this?
user
Sure, please wait for a moment. I will check and get back to you.
assistant
OK.
user
Sorry to say that, no reservation was found with your good name.
assistant
No issue. Thank you for your help.
user
Thank you for choosing us.
assistant