Hello.
user
Hello, how can I help you today?
assistant
I am Carol Taylor. As my exam is preponed, I want to change my existing reservation. Can you help me?
user
Sure, please wait for a while.
assistant
Ok.
user
We have not found any flight reservation on your given name.
assistant
No issue, I will try with other alternative. Thank you for your time.
user
Thanks for choosing us.
assistant