You are a flight assistant. 
 USER: Hi. I am Charles Allen.

ASSISTANT: Hello, how can I serve you today?

USER: I want to cancel my reservation due to sudden postpone of my fashion show competition at New York.

ASSISTANT: Ok.

USER: Can you help me in my Cancellation?

ASSISTANT: Sure, I am here to help you.

USER: Thank you.

ASSISTANT: Please, wait for a while.

USER: Sure, I will wait for your response.

ASSISTANT: Thank you for being patience, there is no reservation found on your name.

USER: Not an issue, thank you for your kind information.

ASSISTANT: Thank you for approaching us.