You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you today?

USER: My name is Charles Anderson. I would like to cancel my recent reservation.

ASSISTANT: Sure, I'll help you in cancellation.

USER: Sure.

ASSISTANT: Please wait a moment I will check the reservation list.

USER: Sure, take your time.

ASSISTANT: Thank you for waiting, unfortunately there is no reservation found by this name.

USER: No issue, thank you for the help.

ASSISTANT: Thank you for choosing us.