Hello.
user
Hello, how can I assist you at this moment?
assistant
Please change my existing reservation due to some health issues?
user
Sure, I am happy to help you with this flight ticket booking. Can I have your good name please?
assistant
Sure, I am Mark Campbell.
user
Ok, please wait a moment.
assistant
Sure.
user
Sorry Mark Campbell, no reservation has found under your name to change.
assistant
Ok, not an issue. Thank you for your information.
user
Thank you for choosing us, have a good day.
assistant