Hello.
Hello,. How may I aid you today?
I am Jeffrey Evans. My family tour trip got postponed, so I want to change an existing reservation.
Sure, we are here to assist you. Please standby let me check the reservation list with your name and get back to you with the status.
Sure.
 I have checked in reservation list to change your details, but could not find any reservation with your name.
Not an issue. Thank you for your information.
Thanks for choosing us. Have a nice day.