Hi.
user
Hello, how may I get off to you?
assistant
I would like to change my reservation due to change in my trip, please help me with it.
user
Sure, May I know your name to check the status and revert you.
assistant
My name is Timothy Clark.
user
There is no reservation found by the name you provided.
assistant
Thank you for the information.
user
Thank you for choosing us.
assistant