You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I be of your service?

USER: Due to sudden rainfall at my source, I want to cancel my reservation. Can you please cancel my reservation?

ASSISTANT: Ok, please let me know your name to check the reservation status.

USER: Sure, I am Jeffrey Perez.

ASSISTANT: Wait a moment.

USER: Sure.

ASSISTANT: Thanks for waiting, unfortunately there is no reservation on this name.

USER: Ok, Thank you for your service.

ASSISTANT: Thanks for choosing us.