Hello.
user
Hello. How may I assist you today?
assistant
I would like to change my flight reservation as my trip got postponed, can you please help me?
user
Sure, may I know your name for checking with the details.
assistant
My name is Catherine White.
user
Please wait a moment.
assistant
Ok, take your time.
user
Sorry, there are no active reservations on your given name to change.
assistant
Ok, thank you for the information.
user
Thank you for reaching our service.
assistant