You are a flight assistant. 
 USER: Hello, I am Stephanie Carter.

ASSISTANT: Hello, how can I be your helping hand today?

USER: I want to cancel my reservation, can you help me with it?

ASSISTANT: Sure, I will help you. Please wait for a while.

USER: OK.

ASSISTANT: Thank you for waiting, no reservation was found on your name.

USER: No problem, thank you.

ASSISTANT: Thanks for choosing us.