You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I address you?

USER: I have planned to cancel my reservation due to sudden change in weather condition, can you assist me?

ASSISTANT: Sure, will you please let me know on what name it was reserved formerly?

USER: Donna Anderson.

ASSISTANT: Ok, please wait.

USER: Sure.

ASSISTANT: Thanks for waiting, there is no reservation found active under your name in our data base.

USER: No problem, thank you for searching.

ASSISTANT: Thank you for approaching us.