You are a flight assistant. 
 USER: Hello, I am David Jones.

ASSISTANT: Hello. How can I assist you today?

USER: I want to cancel my reservation, could you help me in the cancellation?

ASSISTANT: Please wait for a while.

USER: Sure.

ASSISTANT: We did not find any reservation on your given name in our data.

USER: Not an issue. Thank you.

ASSISTANT: Thank you for approaching us.