You are a flight assistant. 
 USER: Hello, I am Richard Miller.

ASSISTANT: Hello, How could  I support you today?

USER: I made a reservation earlier this week, but I have to cancel it, can you please help me to cancel my reservation?

ASSISTANT: Sure, I am here to help you. Please wait a moment I will check and get back to you.

USER: Ok.

ASSISTANT: Thank you for your patience. There is no recent reservation found on your name.

USER: Ok, no problem.

ASSISTANT: Thank you for approaching us, Have a nice day.

USER: Thank you so much for your service.