You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you today?

USER: I am Stephen Hernandez. I want to cancel my reservation, can you help me?

ASSISTANT: Sure, I can help you in cancelling your reservation. Let me check for your reservation status.

USER: Ok, take your time.

ASSISTANT: Stephen, I have not found any reservation by your name.

USER: That's ok, no problem. Thank you.

ASSISTANT: Thank you for contacting us and have a nice day.