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

ASSISTANT: Hello, how may I help you?

USER: Can you please be my helping hand in cancelling my recent reservation?

ASSISTANT: Sure, I am here to help you.

USER: Thank you.

ASSISTANT: Please wait for a while.

USER: Sure.

ASSISTANT: Sorry, no reservation found on your given name.

USER: Not an issue, thank you.

ASSISTANT: Thank you for choosing us.