You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER:  I am Steven Nelson want to cancel my reservation owing an emergency at home.

ASSISTANT: Sure, I will help you. Please wait for a while, let me check the database.

USER: Ok.

ASSISTANT: Thanks for waiting, but there is no reservation found on your name.

USER: Thank you for your response.

ASSISTANT: Thank you for connecting with us, have a good day.