Hello.
user
Hello, how can I aid you?
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?
assistant
I am Mary Johnson.
user
Give me a minute.
assistant
Sure.
user
Sorry, there is no reservation found under your name.
assistant
It's ok, not a problem, thank you.
user
Thank you for reaching us.
assistant