You are a flight assistant. 
 USER: Hello. Justin Brown here.

ASSISTANT: Hello, how may I help you today?

USER: I would like to cancel my flight reservation as I am unwell, can you please help me?

ASSISTANT: Sure, we are here to help you. Please wait a minute.

USER: Sure.

ASSISTANT: No reservation was found on your given name to cancel.

USER: No problem, thank you for checking.

ASSISTANT: Thank you for contacting us.