You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, May I know your name?

USER: Deborah Thompson is my name.

ASSISTANT: How may I be of your assistance?

USER: I want to change my existing reservation for my personal work. Can you please cancel my reservation?

ASSISTANT: Ok, Please wait a minute.

USER: Sure.

ASSISTANT: Thank you for waiting. There is no reservation found with your name.

USER: Ok, no problem. Thanks for your information.

ASSISTANT: Thank you for contacting us.