You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you?

USER: My name is Kathleen Miller, I want to cancel my reservation as my plan to visit my grand father's home is cancelled. Can you help me to cancel my reservation?

ASSISTANT: Sure, please wait a moment.

USER: Sure.

ASSISTANT: Thanks for waiting, there were no reservation found on your name.

USER: Ok, thank you for the inforamtion.

ASSISTANT: Thank you for choosing us.