You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Ronald White.

ASSISTANT: How can I help you Ronald?

USER: Due to typical climatic condition in Dallas, I would like to cancel my recent reservation. Can you help me with this?

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

USER: Sure, take your own time.

ASSISTANT: Sorry, no active reservation under your name.

USER: Ok, not an issue. May be something went wrong while booking the ticket previously. Thank you for providing information.

ASSISTANT: My pleasure, have a nice day.