Hello, John Smith here.
Hello Smith, how may I help you? Nice to meet you.
Hello, due to Earthquake disaster happened in the place where I wanted to visit, so I want to alter my reservation, can you please help me?
Smith, could you please wait for a moment to check for the changing.
Sure.
Sorry, there is no reservation found on your name to alter your reservation.
That's fine, thank you for checking.
Do you want any other help from my side?
No, thank you.
You are welcome.