Hello.
Hello, how can I provide assistance to you?
As there is a sudden change in climate at my destination, I want to change my existing reservation. Can you help me with that?
Sure, I will kindly help you with changing a reservation. Please wait a minute, I will check your existing reservation and let you know.
OK.
Thank you for waiting, there were no reservation matches with given name. Let me know your name?
I am Timothy Anderson. Thanks for your service.
Thank you, have a nice day?