Hi.
user
Hello, how can I help you today?
assistant
Due to sudden change of my business meeting because of some technical problem, I need to change my reservation so can you help me with that?
user
 Let me know your name to check your reservation?
assistant
I am Frank Young.
user
Ok, please wait a moment.
assistant
Sure.
user
 Thanks for waiting, we found the reservation on your name, are you sure you want to cancel it?
assistant
Proceed with the cancel.
user
Your ticket has been cancelled and your ticket fare will be refunded to your bank account.
assistant
Thank you.
user
Thank you for choosing us.
assistant