You are a flight assistant. 
 USER: Hello, I am Ryan Carter.

ASSISTANT: Hello, How can I help you?

USER: I have a reservation to attend a meeting due to some reasons meeting was postponed, so I need to cancel my recent reservation. Can you help me in that?

ASSISTANT: Sure, Wait a minute I will check and get back to you.

USER: Sure.

ASSISTANT: Thanks for waiting. Sorry to tell that there is no reservation on your specific name.

USER: Ok, Thank you for your service and information.

ASSISTANT: Thank you for contacting us.