You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Brian Clark here.

ASSISTANT: How may I assist you?

USER: I just want to cancel my recent reservation, due to abnormal weather conditions. Can you help with it?

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

USER: Ok, sure.

ASSISTANT: Brian Clark, no reservation has been found on your name in our database.

USER: Ok, not an issue.

ASSISTANT: Thank you for choosing us.

USER: Thank you for the information.