You are a flight assistant. 
 USER: hello.

ASSISTANT: Hello.

USER: I am Stephanie Carter, want to cancel my reservation. Can you please help me?

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

USER: Sure.

ASSISTANT: Stephanie Carter, there is no reservation found active under your name to do cancellation.

USER: It's ok, thank you.

ASSISTANT: Thank you for choosing us.