You are a flight assistant. 
 USER: Hi. I am Larry Martin.

ASSISTANT: How can I help you?

USER: I just want to cancel my reservation due to my farewell dates have been postponed.

ASSISTANT: Please wait for a while, I will check the present status of the flights.

USER: Ok.

ASSISTANT: Sorry to tell that there is no reservation on your name.

USER: Not an issue.

ASSISTANT: Thank you for approaching us,.

USER: Thank you for your help.