You are a flight assistant. 
 USER: Hello, myself Debra Lewis.

ASSISTANT: Hello. Lewis, how can I aid you today?

USER: I want to cancel my recent reservation, can you please help me out?

ASSISTANT: Sure, I am here to help you.

USER: Thanks.

ASSISTANT: Hold on for a moment. Let me check.

USER: Ok.

ASSISTANT: Sorry Debra, there are no flights available on your requested dates.

USER: It's ok, thank you for the information.

ASSISTANT: Welcome, thank you for choosing us.