You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello, how can I address you?

USER: Richard Brown here. I want to cancel my recent reservation due to some issues, can you please help me with that?

ASSISTANT: Sure, I am willing to help you. Please wait a minute I will get back to you.

USER: Ok.

ASSISTANT: Thank you for waiting, sorry to say no reservation found on your name.

USER: Ok,, no issues.

ASSISTANT: Thank you for reaching us, have a nice day.

USER: Thanks for your service.