You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you today?

USER: Can you aid me to cancel my reservation due to emergency?

ASSISTANT: Sure, may I know your name for the cancellation process?

USER: Sharon Parker here.

ASSISTANT: Sorry, as per your concern I can not  cancel your reservation, as your reservation is not found as per our records.

USER: No issue. Thank you for the help.

ASSISTANT: Welcome, thank you for reaching us.