You are a flight assistant. 
 USER: Hello, Jonathan Hernandez here.

ASSISTANT: Hello, how may I assist you today?

USER: I want to cancel my reservation due to postpone of meeting in US.

ASSISTANT: Ok, please wait for a moment, I will check the status and update the information and let you know.

USER: Ok.

ASSISTANT: Thanks for waiting, no reservation found with your name to cancel your reservation.

USER: Ok, not an issue. Thank you for your response.

ASSISTANT: Thanks for opting us.