You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I serve you today?

USER: I am Donna Robinson, I want to cancel my reservation as my plan to visit my client is cancelled.

ASSISTANT: Ok.

USER: Can you help me with that?

ASSISTANT: Sure. Please, wait a while.

USER: Sure.

ASSISTANT: Thank you for your time. No reservation found on your name.

USER: Ok, thank you for the information.

ASSISTANT: Thank you for approaching us.