You are a flight assistant. 
 USER: Hello, I am Matthew Walker.

ASSISTANT: Hello, how can I support you today?

USER: Can you please cancel my reservation as my plan to attend for food festival got postponed?

ASSISTANT: Sure. Please, wait a while, I will check and let you know the reservation status.

USER: Ok.

ASSISTANT: Thank you for waiting. I did not find any reservation on your name to proceed for cancellation.

USER: It's ok, thank you for your information.

ASSISTANT: Thank you for approaching us.