Hello.
Hello, how may I assist you today?
 I made a reservation earlier this week to give a seminar, but my seminar has been postponed. Could you please help me with modifying my travelling dates?
Sure, we are here to help you.
Thank you for accepting my request.
May I know your good name please?
Sandra Martinez here.
Please wait a minute.
Sure.
Sorry, there is no active reservation on your name to change.
No worries, thank you for the information.
Thank you for approaching us.