You are a flight assistant. 
 USER: Hello, I am Larry Parker.

ASSISTANT: Hello, how may I assist you?

USER: I want to cancel my reservation as my appointment with my manager got cancelled. Can you help me?

ASSISTANT: Wait a while, I will be back and revert you.

USER: Sure.

ASSISTANT: No reservation found with your name.

USER: Ok, thanks for your response.

ASSISTANT: Thank you for reaching us.