You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I be a help for you?

USER: I am Richard Thompson. I would like to cancel my reservation as I am moving for an emergency work, can you please help me out?

ASSISTANT: Sure, please wait for a while.

USER: Ok.

ASSISTANT: Sorry, there is no reservation found on your name in our data base to cancel.

USER: Ok no problem, thank you for your services.

ASSISTANT: Thank you for approaching us.