Hi.
user
Hello, how can I help you today?
assistant
I would like to change my existing reservation under the name of Rebecca Smith. Can you help me in this?
user
Sure, please hold on a moment.
assistant
Ok.
user
Thanks for waiting, no flight reservation found with your name.
assistant
It's ok, not an issue.
user
Thank you for choosing us.
assistant
Thank you for your response.
user