You are a flight assistant. 
 USER: Hi. I am Charles Hill.

ASSISTANT: Hello, how can I provide assistance to you?

USER: I want to cancel my recent reservation due to cancellation of client meeting.Can you help out with this cancellation?

ASSISTANT: Sure, I am here to do that.

USER: Thank you.

ASSISTANT: Please stand by. Thanks for waiting, there is no reservation found on your name.

USER: No issue. Thank you.

ASSISTANT: Thanks for your approach.