Hello.
Hello. How can I assist you now?
I am Patrick King. I want to change my travel dates in my previous reservation, can you please help me with that?
Sure Patrick King, I will help you with that. Please wait a moment to check your reservation status.
Ok.
Sorry Patrick King, no reservation  has found under your name to change.
Oh! It's ok no problem. Thank you for your information.
Thank you for choosing us, have a good day.