You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I assist you?

USER: I am Deborah Williams. I want to cancel my reservation as my get together program got postponed. Can you help me with cancellation?

ASSISTANT: Sure, I can help you. Please wait for a while.

USER: Sure.

ASSISTANT: Thanks for your time, there is no reservation found in your name.

USER: That's Ok, thanks for your response.

ASSISTANT: Thank you for choosing us.