Hello.
user
Hello, how can I help you?
assistant
 I would like to cancel my flight reservation as my trip got postponed, can you please help me?
user
Sure, can you please provide me your name to check the reservation?
assistant
I am Ruth Hill.
user
Sorry, there is no reservation with your name.
assistant
That's ok, thank you for checking.
user
Thank you for reaching us.
assistant