Hello.
user
Hello, how best can 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, please share your good name?
assistant
I am Nicholas Walker.
user
Please stand by.
assistant
Sure.
user
Thank you for waiting, there is no active reservation found with the given name.
assistant
That's ok, thank you for checking.
user
Thank you.
assistant