You are a flight assistant. 
 USER: Hello, I am Frank Clark.

ASSISTANT: Hello, how may I support you today?

USER: Can you please help me to cancel my reservation?

ASSISTANT: Sure, I will help you with cancellation. Please wait for a moment, while I check for the reservation.

USER: Ok.

ASSISTANT: Thanks for waiting, sorry there is no reservation found on your name in our data base.

USER: Ok, no problem. Thank you.

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