You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you/.

USER: I need an immediate help in cancelling my previous flight ticket due to health concern, can you please help me?

ASSISTANT: Sure, I am here to help you.

USER: Thank you so much.

ASSISTANT: May I know your name please?

USER: My name is Kevin Edwards.

ASSISTANT: Please give me a moment to check your reservation status.

USER: Sure.

ASSISTANT: Sorry, there is no reservation found on your name in our records.

USER: No problem with that one, thank you for checking my previous booking.

ASSISTANT: Thank you for reaching us.

USER: Welcome.