Hello.
Hello, how may I assist you today?
I am Richard Robinson, I want to change my existing reservation. Can you help me with that?
Sure, we are here to help you. Please wait a moment I will check and revert to you.
OK.
Sorry to say, no reservation found on your given name.
Ok, no issues. Thanks for making your safe service so kind.
Thank you for opting us for your change reservation. Have a nice day.