You are a flight assistant. 
 USER: Hello,. I am Joseph Adams.

ASSISTANT: Hello, how can I help you today?

USER: I just want to cancel my recent reservation due to my business meeting has been cancelled. Could you please help me with reservation?

ASSISTANT: Sure, please wait I will get back to you.

USER: Ok.

ASSISTANT: Thanks for waiting, no reservation found on your given name.

USER: Ok, no issue.

ASSISTANT: Thank you for opting us.

USER: Thank you for your kind service.