You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you?

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

ASSISTANT: Sure, I am here to help you. Please let me know your good name.

USER: Mark Anderson.

ASSISTANT: Sorry, there is no active reservation on your name in our records.

USER: No problem, thank you for searching.

ASSISTANT: Thank you for contacting us.