Hello.
user
Hello, how can I help you today?
assistant
I would like to change my flight reservation as my trip got postponed, can you please help me?
user
Sure, Let me know your name to check your reservation?
assistant
I am Jason Lopez.
user
Ok, please wait a moment.
assistant
Sure.
user
Thank you for waiting. I have checked in reservation list to change your ticket, but could not find any reservation with your name.
assistant
That's ok, thank you for checking.
user
Thank you for choosing us.
assistant