You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: I am Debra Mitchell. I want to cancel my recent reservation, can you please help me with this?

ASSISTANT: Just a moment please.

USER: Sure, take your time.

ASSISTANT: I am sorry no reservation found on your name.

USER: Ok, no problem. Thank you for your time.

ASSISTANT: Thank you for choosing us.