Hello.
Hello, how may I aid you today?
I want to change my existing reservation due to some issues, can you please help me with that?
Sure, we are here to help you. Can I have your name to proceed?
I am Jack Evans.
Ok, please wait a moment.
Sure.
Thank you for your time, sorry no reservation found with provided name.
Ok, not an issue. Thank you for your information.
Thank you for availing us.