You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello, how can I assist you?

USER: My name is Richard Davis. I want to cancel my recent reservation.

ASSISTANT: Sure, please wait a minute. I will check and inform you.

USER: OK.

ASSISTANT: Thank you, for waiting no reservation has found with your name.

USER: OK. Thanks for the information.

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