You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello,. How can I serve you?

USER: I am Benjamin King and I want to cancel my recent reservation due to sudden dismissal of my great grand mother.

ASSISTANT: Sure, please wait a moment.

USER: Ok.

ASSISTANT: Thank you, for your waiting. No reservation were found with your name.

USER: Thank you for your information.

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