Hi.
user
Hello, how may I assist you?
assistant
I am Joshua Brown. I want to change an existing reservation due to sudden change in my trip. Can you help me?
user
Sure, let me check the status and revert you.
assistant
Thank you. Ok.
user
We could not find any reservation by the name you provided.
assistant
No issue. Thank you.
user
Thank you for choosing us.
assistant