You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. What can I do to make your experience better with us?

USER: I want to cancel my recent reservation due to heavy rains. Can you help me for this one?

ASSISTANT: Sure, I'll help you in cancellation. Could you please let me know your name to check the reservation status?

USER: Sure, William Brown here.

ASSISTANT: Thank you for providing your name, please wait a moment.

USER: Sure.

ASSISTANT: Thank you for waiting, Sorry there is no active reservation have been found under your name in our database to cancel it.

USER: No issues, thank you for the information.

ASSISTANT: Thank you for availing us.